Monday, August 10, 2026

SOLID BITUMAN, OZOKERITE, FROM UTAH*

 

At times on quiet waters one does not speak aloud but only in whispers, for then all noise is sacrilege.       Sigurd Olson

This time of year, as the temperature begins to cool a few degrees here in the woods of Wisconsin (for example it was 68 degrees as I was reading in my front porch rocking chair at 4:00 pm, August 9) my mind wanders off to far northern Minnesota and Wisconsin, the home of the Canadian Shield, giant muskies, and calls of my favorite bird, Common Loons (Gavia immer). It must be my genetics of hatching from a long line of Danes and Swedes, although I also can trace one other direct English lineage going back to arrival on the Mayflower. So, I fit right in here in the small Village of Holmen, although many/most of the local Scandinavians are of Norwegian ancestry, but they have accepted me as we both eat pickled herring washed down with a shot of akvavit followed by a couple of krumkake.

 This time of year, I also break out my ancient copy of The Singing Wilderness (signed), written by a boy from Ely, Minnesota, named Sigurd Olson, probably best known for his work on protecting the Boundary Waters Canoe Area Wilderness. Wisconsin also has their favorite naturalist, Aldo Leopold, author of The Sand Country Almanac. Together these two books form the backbone of the conservation and ecology movement, especially in the Midwest but also elsewhere—Olson helped create Point Reyes National Seashore in California while Leopold created the Gila Wilderness in New Mexico.

 May after May my pines follow their candles skyward, each headed straight for the zenith, and each meaning to get there if only there be years enough before the last trumpet blows.      Aldo Leopold

At any rate, I discovered The Singing Wilderness in 1967 and have reread it at least a couple of dozen times. As I age it seems like I haul it out on a yearly basis and begin to dream about the far North Woods, especially canoeing and fishing and pounding on Precambrian rocks. Today my poor ole replaced knees do not allow me to kneel in a canoe, but I am perfectly at home in a fishing boat and try to head north every year. In mid-September I am hauling a friend from Hays, Kansas, to Leech Lake, Minnesota, with a cabin and boat waiting for our arrival. This upcoming trip occupies many of my daydreams.

Life in the fast lane in the far north woods (actually Canada).

Wow, 1967 was 59 years ago, and there are “things” that really stick out in my mind. That was the year I learned one of my favorite sayings: what we have here is a failure to communicate as spoken by Boss Paul to Luke (Paul Newman) in the movie Cool Hand Luke. I guess you must be of a certain age to remember weird things like that!     

 

Photo courtesy of quotesgram.com.

On a more personal note, the year 1967 was monumental for me---no I did not participate in the Summer of Love; however, in a space of two weeks I graduated with my M.A. from the University of South Dakota, drove to Kansas and married (spouse still with me), and then drove to Salt Lake City (And I'm bound to keep on riding, and I've got one more silver dollar---Allman Bros Band) where I started doctoral work at the University of Utah.  As I tell my children (and anyone else who will listen), it was an interesting time in our nation, and the world.  Nearly a half million people were serving our country in Southeast Asia, and several were my friends, some of whom did not return alive. Many college campuses were in turmoil. 


The Middle East was in flames again as Israel tangled with Egypt, Syria, and Jordan in the Six-Day War. Things haven’t changed much today except the weapons have become more deadly and powerful and certainly more expensive.  Oh well, with a 38 trillion-dollar national debt what is a billion here or a billion there!


On the social scene discotheques appeared, even a few popped up in Salt Lake City, where young ladies danced in suspended cages.  Say it ain’t true dad.  Yep, I hate to say it son, but your mother and I actually observed this sort of behavior while rocking to Grace Slick and Jefferson Airplane belting out Somebody to Love and White Rabbit.  But don’t worry kid, we stayed away from the magic weed—as if you could easily find it in 1967 Utah!  And very seldom did we visit an actual establishment that served alcoholic beverages and provided a live band since our personal income was rather low!  That fact was not lost on my fellow grad students, and we were all in the same boat.  So, it was three quarts of beer for a buck to accompany our spaghetti dinners.

On the academic side, it was field trips and field work that excited all students.  I mean, that is why we became geologists.  At times the trips were led by professors, at times by advanced grad students, and at times by someone saying “we are heading to----somewhere---and leaving at six tomorrow morning.  Grab your spouse, tents and supplies and meet us at the corner of ------.”  We were GEOLOGISTS!! YEA.

 He was born in the summer of his 24th year
Coming home to a place he'd never been before
He left yesterday behind him, you might say he was born again
You might say he found a key for every door.  
John Denver

On one of our trips, heading to the San Rafael Swell, we stopped near Soldier Summit (US 6 from Spanish Fork to Price, Utah) at the former site of Colton.  Yes, Colton is still listed on the map, and a “general store” is present (sometimes open, often not) but that is “new Colton.”  The "old Colton" was a little to the west and had the original name of Pleasant Valley Junction. It was first constructed in the early1880’s as a stopping point for the newly built Rio Grande Railroad.  Pleasant Valley Junction provided coal and water to refuel the engines that hauled coal cars from Price over the pass to Spanish Fork/Provo.  The area around Price has almost unlimited (it seems) supplies of Cretaceous-age coal. In addition to the Price area coal, the hills around Pleasant Valley Junction also produced coal, transported by a spur line, for shipment to the west and for use as fuel for the train.  By around 1897/1898 Pleasant Valley Junction had morphed into a sort of booming town and was renamed Colton (as best that I can tell from the history books the name honors a person associated with the railroad).  Evidently the town started shipping local agricultural products, ice (in the winter), and a strange, new and rare hydrocarbon from some local mines, ozokerite. 


Google Earth © image of the Colton area.  Soldier Summit is just to the north of the upper border along US 6 leading to Spanish Fork/Provo.  Price is to the south on US 6. 

 

Ozokerite, a waxy hydrocarbon, had been known from the Soldier Summit/Colton area since the mid-1880s but serious mining did not take place until after the turn of the century.  The depth of the mine shafts was reported by Taft and Smith (1905) to be in excess of 200 feet with several lateral drifts following veins ranging from a few inches to three feet in thickness.  Small powered hoists (steam I presume) were used to transport the wax to the surface.  In addition, some shafts started at the surface and simply followed the veins into the host rock fractures.

Taft and Smith (1905) further noted that the distilling location consisted of a steam boiler and engine, a crusher, and steam-heated vats with narrow bottoms.  The host rock and the ozokerite were crushed and ran into the long vats containing water at boiling temperatures.  Ozokerite begins to melt at ~ 136 degrees F while the crushed host rock waste was driven out of the narrow-bottom vats by a revolving screw.  The floating ozokerite was skimmed off, placed in pans, cooled, and then remelted to remove all moisture.

 

Engine and tender on a turntable at Pleasant Vally Junction cs. 1885. Photo courtesy of Matthew M. who posted it on Narrow Gage Discussion Forum (https://ngdiscussion.net/) August 2025.

Ozokerite (AKA wax, wax stone, earth wax, crack wax, ear wax, blister wax, paraffin wax, paraffin, pietricikite, and others) is one of those strange and interesting solid bitumens found in Utah, and in other places in the world.  However, Utah seems to have the greatest variety in the United States: kerogen in oil shales; ozokerite (ozocerite), albertite, ingramite, glance pitch, gilsonite, tabbyite, asphaltic (tar) sandstones, argulite, asphaltic limestones, wurtzilite, liverite, elaterite (Hunt, 1963) and Chinese Wax (Ritzma, 1975); most bitumens are associated with the Tertiary Green River Formation in the Uinta Basin. Generally, the bitumens are solids with low melting points; however, some are essentially heavy liquids as they “ooze” out of rocks---often depending on ambient temperatures.  The bitumens generally are distinguished from one another by their fusing points (point at which they melt), solubility in carbon disulfide, physical characters, specific gravity, sulfur content, Infrared Absorption Spectra, refractive indices, and the hydrogen/carbon ratio. Hunt (1963) arranged the Utah bitumens into four groups according to their increasing fusing points: waxes (ozokerite), asphalts (tabbyite, liverite, liquid gilsonite, argulite), asphaltites (gilsonite, grahamite, glance pitch, asphalitic sandstones, asphalitic limestones), and pyrobitumens (wurtzilite, ingramite, albertite). However, none of these bitumens meet the criteria that would qualify them as true minerals.

Ozokerite in the Colton/Soldier Summit area is generally black to brown-black in color often with inclusions of yellow-green resinous material (pure ozokerite from several European localities is colorless).  It does not bend but seems malleable; at times the material has a petroliferous odor.  It is soft and can be scratched with a finger-nail, cut with a knife, and has a “greasy feel.”  The hydrogen/carbon ration is about 85/15 and ozokerite has a very low specific gravity of around 0.8-0 .9 (water is 1.0).  The melting point of ozokerite is low as it begins to melt at ~136 F degrees.  This low melting point allowed the early miners to boil the mine-run ozokerite in water and skim it off the surface to help eliminate the impurities. 

Ozokerite collected near Colton, Utah.  Note the shiny surface that creates a "slick" feel.  Length is ~7.0 cm.

 

Hunt (1963) grouped the major bitumens of Utah (essentially the Uinta Basin) as oil shales, vein deposits, and bituminous sandstones and each group occurs in a particular sedimentary facies associated with the Tertiary Green River Formation.  The Green River rocks are mostly lacustrine (lake) deposits associated with intermontane basins in Utah (Uinta), Colorado (Piceance), and Wyoming (Greater Green River).  The widespread oil shales are found in the lake rocks while the bituminous vein deposits (including ozokerite) are associated with fracture systems in the shore facies.  Rocks of the subaerial facies seem devoid of bitumens.  Hunt (1963) further believed these solid bitumens started as heavy oils and migrated along fault zones, or migrated updip, from the lacustrine facies into the shoreline facies.  He pointed out that some wells in the Basin produce oil from fractured bituminous shale in the Green River Formation and the “heavy fraction” is similar in composition to ozokerite. Of course, the liquid fractions evaporated and oxidized leaving behind the wax as the oil morphed into ozokerite (and other vein bitumens).

 A similar vein bitumen situation occurs near the summit of Daniels Canyon, the major mountain pass on US 40 trending from Heber City to Vernal, Utah.  Ritzma (1975) reported the Chinese Wax Mine produced a hydrocarbon that ranges from very viscous heavy oil to a very soft wax (depending on ambient temperature) that fills the pore spaces of the badly fractured host rock.  Composition of the hydrocarbon is similar to ozokerite. Several decades ago, before my claustrophobia blossomed, I somewhat explored parts of the mine and noticed a black substance oozing from the rock.  Later I found that the mine was first claimed in 1909 and actually produced, by retorting or distilling, a high-grade oil that was used in automobiles, lamps and the candle wax industry. The commercialization of the mine seemed to be short.



The really interesting aspect of the Chinese Wax Mine is the geological setting--it is located on the far west margin of the Uinta Basin where the Pennsylvanian-Permian Oquirrh Formation crops out and overlies the much younger, early Tertiary Wasatch and Green River formations (the source rocks).  The Oquirrh is present here due to a large thrust fault (the Charleston) “transporting” the rocks from several tens of miles to the west.  In other words, the marine rocks of the Oquirrh were originally deposited in a Pennsylvanian-Permian Basin west of Salt Lake City and “thrusted’ along a low angle fault many miles to the east. The oil evidently migrated along a fracture zone from the lacustrine facies of the Green River Formation several miles toward the center of the Uinta Basin (Ritzma, 1975).

Diagram of a thrust fault with compression from the left pushing older rocks over younger rocks.  Note the blue layer is older than the green layer.  However, in the area of the white circle note the older layer (blue) is sitting on the younger layer (green).  Public Domain sketch courtesy of Mikenorton.

 

Thrust faults are one of the wonders of geology.  In describing these magnificent features Hintz (2005) stated: lifting a brick house off its foundation and putting it on wheels to move it somewhere else is something we’ve seen and can understand.  But taking a stack of rock strata 2 or 3 miles thick and several tens or even hundreds of miles long and wide and moving it 50 or 60 miles on its own bedding planes or fracture zones and having it arrive at its destination in some coherent shape is something we find almost unbelievable!  Yet evidence this commonly happens during an orogeny is undeniable…  In Utah, these thrust faults were caused by crustal shortening due to plate collision and compression to the west. 

 


Ozokerite originally was used in candle making (a higher melting point), mixed with rubber (not synthetic) to construct electrical insulators, boot polish, a skin balm, and distilled into light oil. Today all ozokerite is obtained by distilling petroleum products and is mainly used in various beauty products as a binder, emulsion stabilizer or a thickener.  It is used to add strength to lipstick and compact eye shadow. It is also found in some brands of skin care lotions, suntan lotions, and fragrance.  Perhaps one should check the label on makeup; however, it may be listed as ceresin, a “purified” ozokerite.  I did a quick check at the local pharm and noted that several brands of lip balm contained ozokerite.  Ain’t geology fun?

 

REFERENCES CITED

 

Hintze, L.F., 2005, Utah’s Spectacular geology: Department of Geology, Brigham Young University, Provo, Utah.

Hunt, J.M., 1963, Composition and origin of the Uinta Basin bitumens in Oil and gas possibilities of Utah, re-evaluated, A.L. Crawford (Ed.), Utah Geological and Mineralogical Survey, Bulletin 54, Paper 24.

 Ritzma, H.R., 1975, The Chinese Wax Mine; A unique oil-impregnated rock deposit: Utah Geology; vol. 2, no. 1.

Taft, J.A., and C.D. Smith, 1905, Ozokerite deposits in Utah: Contributions to Economic Geology.

Life is good to those who know how to live. I do not ever hope to accumulate great funds of worldly wealth, but I shall accumulate something far more valuable, a store of wonderful memories. When I reach the twilight of life I shall look back and say I'm glad I lived as I did, life has been good to me.     Sigurd F. Olson

 
* This posting is a rewrite of one appearing several years ago.  

Saturday, August 1, 2026

COULEE ROCK CLUB AND BLUE VEZSELYITE

 

The Coulee Rock Club, based in Wisconsin’s Driftless Area (see end paragraph), working with the Show Chair Allison and her crew, held its annual rock, mineral, fossil, and jewelry show and sale during the second weekend of June. By all accounts, the event was a resounding success, drawing an estimated attendance of ~1600—perhaps the largest turnout in recent memory. Visitors streamed through the doors from Saturday’s opening to Sunday’s close, and the vendors I spoke with seemed pleased with their sales. As rock and mineral shops continue to close across the country, shows like the Coulee event may be the best—and perhaps last—places to view genuine specimens in person and to chat with dealers and other rockhounds in an informal environment.

You just can’t beat two bucks a head complete with friendly conversation!

My “job” for the show was as a greeter and font of knowledge about all things geological, especially where to collect Lake Superior Agates: ANSWER-- examine all decorative river-derived gravel lining flower beds, sidewalks, etc. as you walk around town; 2) visit a local landscaper and obtain permission to examine their landscaping gravel; and 3) join our rock club and attend the field trips walking or canoeing the sand bars in local feeder streams. In my opinion, it is much easier to collects agates in downtown La Crosse along the Mississippi River than to scour the shorelines of Lake Superior.

Meet Mr. Castoroides, a bear-size beaver who only became extinct about 10,000 years ago.

As a greeter I was trying to attract, and visit with, the younger clientele who were tagging along with their parents or grandparents---get them interested at an early age. I was fairly successful since I brought along some of my casts of a Pleistocene Giant Beaver and a Dire Wolf along with the giant claw from the Oklahoma  Allosaur. I also had a bag filled with small “pretty rocks,” mostly shiny and siliceous, as a “give-a-way” to entice their interests. Often, youngsters know a large amount of information about fossils and they like to tell anyone within earshot. Bring ‘em on; KIDS ROCK!

Buyers were waiting when the doors opened.

I am not an avid agate collector nor a lapidary, both major hobbies of many of our club members. These interests relate to our local bedrock geology—outcrops of Cambrian sandstones and Ordovician carbonates with the latter often containing siliceous vugs or nodules and at times calcite crystals, and the gravels and cobbles containing agates along the River. However, the club also sponsors exciting collecting trips to the Black Hills and adjacent outcrops, Moose Lake, MN agates, Wisconsin moonstone, agate rivers of Montana, Keokuk concretion rocks of Missouri and Iowa, amethyst quarries near Thunder Bay, Ontario, famous Native American quartzite quarries, and fluorite localities in Illinois and Kentucky. See Couleerockclub.org for information.

I prefer to visit dealers with a selection of interesting and non-common minerals—no pyrite, calcite nor quartz! And sometimes these dealers are tough to find her in the Midwest, unlike shows in my previous abode in Colorado.  Therefore, I was pleasantly surprised to Find SS Rocks from up the road in Oshkosh, WI. SS Rocks hits many of the rock and mineral shows in this part off the Midwest but also has a large EBAY presence with auctions and a store (ssrocks2015). They simply have a large collection of minerals from many parts of the world and quite reasonable prices.

Several local members of the Coulee Club participated in the dealerships of the show with wares ranging from jewelry to agates to local/semi local minerals. I was most interested in a large hunk of amethyst-bearing rock collected from the quarries near Thunder Bay, Ontario, hauled back by Apryl.  It certainly is more exciting than Cambrian sandstone road cuts! Jay and Jana, agate slicer and ring maker extraordinaire, worked tirelessly to clear away hundreds of  specimens via the club silent auction.

A regular dealer at the Coulee Show is “Mr. Wisconsin Agate” Doug Moore from up the road in Stevens Points. Doug is a masterful agate collector and agate photographer and is known worldwide for his spectacular prints and posters, especially of those collected from Germany (over 30 trips since 2002), the Lake Superior region of the Midwest, Oregon thundereggs (a book in is the works), and Fairburn types from the Black Hills region. Check out this QR code for some of Doug’s photos.

 

So, one of my purchases this year from SSRocks was a nice blue mineral (I seem stuck on blue minerals), veszelyite, a hydrated copper zinc phosphate, [(Cu,Zn)2Zn(PO4)(OH)3 · 2H2O]. As a rare secondary mineral found in the oxidized zone of some polymetallic mines rich in copper and zinc. The “blue” color, often quite vivid, comes in a variety of shades from the well-known electric blue, to royal blue and cobalt blue, to turquoise blue-green, to mostly green to light blue. The crystals are vitreous to subvitreous, and rather soft (~4.5 Mohs).  Larger crystals are identified as Monoclinic and flattened or elongated Prismatic. However, many specimens contain quite tiny, bladed crystals or granular aggregates and are difficult for me to locate well-formed crystals.

The matrix of the specimen consists of tiny botryoids of hemimorphite [Zn4Si2O7(OH)2 · H2O]. Note some blue veszelyite showing through. Width FOV ~ 6 mm.

Veinlet of intense blue veszelyite in a mixture of matrix hemimorphite and lighter blue veszelyite. Width FOV ~6 mm. The green botryoids are hemimorphite or perhaps cuprodongchuanite, a lead zinc copper phosphate.  Width FOV ~6 mm.   

A vug (~2 mm) in the matrix containing microscopic crystals of veszelyite with a partial covering of two shades of green botryoids.

Submillimeter aggregates (darkest intense blue) of flattened plates of veszelyite crystals. Best crystals I could locate and get a photo.

Veszelyite is a rare mineral and for decades most specimens, never common, came from Africa and Europe (Type Locality in Romania, 1874) although the Black Pine Mine in Montana produced what was/are the finest crystals. Then recently, in the last decade, magnificent and numerous specimens hit the market from the Dongchuan Copper District, Kunming, Yunnan, Peoples Republic of China. The Dongchuan Mine in the District is the source of my specimen.

The District is a major producer (third largest) of copper utilized by the industrial giants of China. The copper ore is found in sedimentary rock-hosted, strata-bound deposits and has been mined for centuries. One early use of the copper was to mint bronze coins (an alloy of copper and tin) during the Quig Dynasty, the last imperial dynasty of China (1644-1912). MinDat noted the District has produced 84 valid minerals including 7 types (mostly colorful tiny phosphates). It is well known as a collector’s paradise.

FYI: The Driftless Area is a topographic and cultural region that comprises southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois. It was never covered by ice during the last glacial period, so the area lacks the characteristic glacial deposits known as drift. Its landscape is characterized by steep hills, forested ridges, deeply carved river valleys, and karst geology with spring-fed waterfalls and cold-water trout streams. Ecologically, the Driftless Area's flora and fauna are more closely related to those of the Great Lakes region and New England than those of the broader Midwest and central Plains regions. The rugged area near La Crosse (my home) is known as the Coulee Region due to the steep and deep canyons (coulees) cutting through the River bluffs to Base Level (the Mississippi River). Many areas in the bluffs are ~ 600 feet above the River and offer amazing views (see Grandad Bluff). Mt. La Crosse Ski area near the south edge of the city has a vertical drop of 516 feet and is a major destination in the area. It just a pretty nice place to live and enjoy life.

Above paragraph extracted from Wikipedia July 2026.