BLOG POSTINGS
JANUARY 2020
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DECEMBER 2019
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NOVEMBER 2019
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OCTOBER 2019
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SEPTEMBER 2019
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AUGUST 2019
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JULY 2019
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JUNE 2019
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APRIL 2019
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MARCH 2019
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FEBRUARY 2019
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JANUARY 2019
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DECEMBER 2018
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NOVEMBER 2018
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OCTOBER 2018
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SEPTEMBER 2018
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AUGUST 2018
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JULY 2018
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JUNE 2018
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APRIL 2018
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MARCH 2018
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FEBRUARY 2018
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January 2018
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DECEMBER 2017
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NOVEMBER 2017
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OCTOBER 2017
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SEPTEMBER 2017
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AUGUST 2017
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JULY 2017
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JUNE2017
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APRIL 2017
DURANGITE: RED ARSENATE, WEST DESERT, UTAH
PARISITE: CERIUM RARE EARTH MINERAL
CHENEVIXITE: A GREEN ARSENATE
WULFENITE: THE BLACK SHEEP VARIETY
SCHOLZITE: & SEARCHING FOR THE EDIACARAN
AUGELITE: AN UNCOMMON GREEN PHOSPHATE
PURPURITE (PHOSPHATE) FROM SOUTH DAKOTA AND COLORADO
FEBRUARY 2017
VOLBORTHITE; BRIGHTLY COLORED VANADIUM MINERAL
POTTSITE; A YELOLW LEAD BISMUTH VANADATE
S. F. EMMONS, EMMONSITE, MT. EMMONS & TELLURIUM
JANUARY 2017
CYLINDRITE: A CIGAR-ROLLED SULFIDE
IMPORTING GEMS, IVORY AND CORAL; QUESTIONS, I GET
BLUE SAMPLEITE; COPPER PHOSPHATE
2016 POSTINGS
DECEMBER
COLLECTING FOSSILS ON PUBLIC (BLM) LAND
BLACK HILLS: TUFA vs. TRAVERTINE
SCAPOLITE: A SORT OF FORGOTTEN MINERAL
NOVEMBER
MORE SOUTH DAKOTA AGATES
ROCHE MOUTONÈE: EVIDENCE OF GLACIAL MOVEMENT
COLLECTING STRIPED ROCKS IN UTAH
STROMATOLITES, CYNOBACTERIA AND WORMS
OCTOBER
ROAD TRIP: MINING COMMUNITIES IN THE NORTHERN BLACK HILLS
CUSTER, THE BLACK HILLS AND GOLD
SEPTEMBER
BLACK HILLS: HOMESTAKE GOLD AND SCRIPOPHILY
SILVER FROM THE BLACK HILLS, SOUTH DAKOTA
AUGUST
KÖTTIGITE (ARSENATE), UMLAUTS AND BEAUTY
JULY
JORDANITE, LAZARD CAHN AND WILLARD WULFF
CHRYSOBERYL FROM THE BLACK HILLS, SOUTH DAKOTA
CREEDITE: CRESSON PIT, CRIPPLE CREEK
JUNE
COLLECTING FOSSILS ON PUBLIC (BLM) LAND
BLACK HILLS: TUFA vs. TRAVERTINE
SCAPOLITE: A SORT OF FORGOTTEN MINERAL
NOVEMBER
MORE SOUTH DAKOTA AGATES
ROCHE MOUTONÈE: EVIDENCE OF GLACIAL MOVEMENT
COLLECTING STRIPED ROCKS IN UTAH
STROMATOLITES, CYNOBACTERIA AND WORMS
OCTOBER
CUSTER, THE BLACK HILLS AND GOLD
SEPTEMBER
BLACK HILLS: HOMESTAKE GOLD AND SCRIPOPHILY
SILVER FROM THE BLACK HILLS, SOUTH DAKOTA
AUGUST
KÖTTIGITE (ARSENATE), UMLAUTS AND BEAUTY
JULY
JORDANITE, LAZARD CAHN AND WILLARD WULFF
CREEDITE: CRESSON PIT, CRIPPLE CREEK
JUNE
CAMP BIRD SPHALERITE
BOLEITE & DIABOLEITE: CSMS SHOW
STICHTITE: PIKES PEAK GEM AND MINERAL SHOW
MAY
THE 2016 RMFMS MEETING: THE NITTY GRITTY
Ar-kan-saw to ar-KAN-zes: THE ROAD TO WICHITA
BLUE AZURITE: TUCSON 2016
TUCSON MAIN SHOW 2016
APRIL
BLUE CARLETONITE: TUCSON 2016
MARCH
BLUE SERPIERITE: TUCSON 2016
BLUE LAVENDULAN: TUCSON 2016
BLUE AFGAHNITE: TUCSON 2016
COLLECTING AMMOLITE IN ALBERTA
FEBRUARY
BLUE CAVANSITE; ZEOLITES: TUCSON 2016
BLUE CHALCEDONY: TUCSON 2016
BLUE QUARTZ: TUCSON 2016
JANUARY
STROMEYERITE, SILVER AND KEVIN BACON
GREEN ARSENATES II: LIBENTHENITE, CORNWALLITE,
PSEUDOMALACHITE
GREEN ARSENATES I: ADAMITE, OLIVENITE
CADMIUM, GREENOCKITE AND NI-CAD BATTERIES
2015 POSTINGS
DECEMBER
CACTUS SELENITE: GREAT SALT LAKE
DUGWAY GEODES, ANTLERITE, SCARY PLACES
CRIPPLE CREEK, SCRIPOPHILY AND GOLD SHARES
NOVEMBER
FUSULINIDS, BRACHIOPODS, SOUTHEAST ASIA AND MUNGO JERRY
CLINOCHLORE & SERAPHINITE: CRUD ON THE QUARTZ
COOKEITE: CRUD ON THE QUARTZ
MAMMOTH MINE, UTAH: TYROLITE (ARSENATE)
OCTOBER
KANSAS FIELD TRIPS: CAVES AND ROCK CITY CONCRETIONS
KANSAS FIELD TRIPS: HALITE AND CONE-IN-CONE
RARE EARTH ELEMENTS: COLORADO TROUT CREEK FIELD TRIP
SEPTEMBER
DENVER SHOW 2015: COBALT MINERALS
DENVER SHOW 2015
CAHNITE AND LAZARD CAHN
BLACK HILLS COSMOS AND HUREAULITE
GOLD HILL HIDALGOITE (ARSENATE)
AUGUST
FOLDS: ANTICLINES, SYNCLINES, MONOCLINES
WHY A GEOLOGIST?
VALLERIITE: AN EXTRA-SOFT MINERAL
JULY
VIVIANITE: COLOR-CHANGING IRON PHOSPHATE
COBALT RED & NICKEL GREEN
ARKANSAS PHOSPHATE: KIDWELLITE
MANGANESE: STURMANITE FROM THE KALAHARI
CORNETITE: BLUE COPPER PHOSPHATE
JUNE
MISSOURI MOZARKITE, COAL & GEODES
NEW FOREST SERVICE RULES FOR COLLECTING FOSSILS
ARKANSAS: QUARTZ: DIAMONDS AND MORE
GEOLOGY FIELD CAMP: RITE OF PASSAGE 50 YEARS LATER
ARKANSAS: VARIETY OF GEOLOGY
MAY
TOTAL KNEE REPLACEMENT
APRIL
NON-GEOLOGY: CONNECTING BEECHER ISLAND & BLACK HILLS
NON-GEOLOGY: 1876 KILLINGS--BLACK HILLS
SAND: SMALL STONES
NON-GEOLOGY POST: THE BATTLE OF BEECHER ISLAND--WEAPONS.
MARCH
AJOITE: BLUE-GREEN COPPER CARBONATE
THE DESERT AND PRECAMBRIAN ROCKS; CAVE CREEK
CHASING ARIZONA ONYX
CALEDONITE: RARE BLUE COPPER-LEAD CARBONATE
CONNELITE: ANOTHER RARE BLUE COPPER MINERAL
BABINGTONITE: MA STATE MINERAL
RARE LEAD COPPER OXIDE: MURDOCHITE
FEBRUARY
PEROVSKITE: CALCIUM TITANIUM OXIDE
PARATACAMITE: TUCSON GEM SHOW REPORT: THE END
LAZULITE: TUCSON GEM SHOW: MAIN SHOW
TUCSON GEM SHOW: 2015 MAIN SHOW
PARGASITE: TUCSON GEMS SHOW REPORTS: WHOLESALE
BOURNONITE: TUCSON GEM SHOW REPORT: TUCSON CITY CENTER
KUTNOHORITE: TUCSON GEM SHOW REPORTS: KINO
RUBY & SPINAL: TUCSON GEM SHOW REPORTS: 22nd STREET
PYROPHYLLITE: TUCSON GEM SHOW REPORTS: MINERS CO-OP
CRANDALLITE: TUCSON GEM SHOW REPORTS & PALEO
VANADINITE: TUCSON GEM SHOW REPORTS: MAIN STREET
JANUARY
STRATIGRAPHY TERMINOLOGY: GROUPS, FORMATIONS, MEMBERS
GOLD HILL, UTAH, ARSENATES
2014 POSTINGS
DECEMBER
TV PROSPECTORS & ZEBULON PIKE
BLACK HILLS: STRENGITE & APATITE
NOVEMBER
BLUE COPPER SILICATES; KINOITE & STRINGHAMITE
GRAB THE BLASTING POWDER: OFF TO THE FIELD
BUTTE, MONTANA: COPPER MINERALS
OCTOBER
MAJUBA HILL: CLINOCLASE & ARTHURITE: COPPER ARSENATES
STRASHIMIRITE: RARE COPPER ARSENATE
MORE CHLORIDES: SYLVITE & CHLORARGYRITE
CARLTON TUNNEL: CRIPPLE CREEK-VICTOR
ROAD TRIP: COLORADO SPRINGS WEST
ATACAMITE: A RARE COPPER CHLORIDE
TRUCKIN THRU BLACK HILLS FAIRBURN AGATES, BARITE AND SNAILS
SEPTEMBER
DENVER MINERAL SHOW: 2014
CONCERNING THE GEOLOGY OF COLORADO
JULY
ROADTRIP: OKLAHOMA CENTRAL PLAINS AND PANHANDLE
ROADTRIP: OKLAHOMA WICHITA AND ARBUCKLE MOUNTAINS.
PYRRHOTITE: A "STRANGE" IRON SULFIDE
ROAD TRIP: EASTERN OKLAHOMA
GARNIERITE: LATERITIC GREEN NICKEL "MINERAL"
COLORADO PSEUDOMORPH: HEMATITE AFTER SIDERITE
THE HIGH PLAINS: FULL OF CHARACTER
JUNE
SIEGENITE: ANOTHER RARE NICKEL SULFIDE
MILLERITE & ?POLYDYMITE: RARE NICKEL SULFIDES
HOLMQUISTITE: RARE LITHIUM SILICATE
CORNWALLITE: ANOTHER GREEN ARSENATE
WYOMING YOUNGITE AND OTHER ODDITIES
MAY
PEACOCK ORE; BORNITE OR CHALCOPYRITE?
CARMINITE: A NICE RED ARSENATE
QUARTZ: RED AND AUTHIGENIC
DUFTITE: A NICE GREEN ARSENATE
CALLAGHANITE; A RARE BLUE CARBONATE
APRIL
DESERT VARNISH & THE COLORADO PLATEAU
THE ARIZONA HILLS NEAR ORACLE
DOTSERO VOLCANO & UNIFORMITARIANISM
GOING TO TUCSON: ROAD LOGS
ISINGLASS AND MUSCOVITE: BLACK HILLS
SELENITE ROSES; BLACK HILLS
MARCH
MOAB: GEM CITY OF THE COLORADO PLATEAU
ROADSIDE KANSAS: UNDERSTANDING THE GEOLOGY
BLACK HILLS PUDDINGSTONE AND LAME JOHNNY
GARNETS: RUBY MOUNTAIN COLORADO
UNITED KINGDOM ROCK & MINERAL CLUBS
PIKES PEAK AMAZONITE & CLARENCE COIL
PIKES PEAK GEOLOGY AND GIRL SCOUTS
FEBRUARY
TUCSON 2014: SATELLITE SHOWS
ON THE ROAD TO TUCSON: FOUR PEAKS AMETHYST
TUCSON 2014: GEM & MINERAL SHOW
TUCSON 2014: WHOLESALE SHOW
RED RIVER SELENITE ROSETTES
JANUARY
GEOLOGY: EASTERN SOUTH DAKOTA
UTAH AZURITE & LACCOLITHS
CALCITE SAND CRYSTALS: SOUTH DAKOTA
2013 POSTINGS
DECEMBER
COLORADO GEOLOGY:
I-25 CORRIDOR SOUTH
ARIZONA MINERALS AND THE GADSDEN PURCHASE
BLACK HILLS: LARAMIDE INTRUSIONS
ARKANSAS PHOSPHATES: WAVELLITE, VARISCITE, CACOXINITE,
ROCKBRIDGEITE
HUERFANO BUTTE, COLORADO: THE ORPHAN
NOVEMBER
"ZINNWALDITE": MICA PIKES PEAK BATHOLITH
ARKANSAS BAUXITE
HAHNS PEAK, COLORADO
ZEOLITE: MORDENITE
TABLE MOUNTAIN, ZEOLITE, and COORS BEER
OCTOBER
ZEOLITE: LAKE SUPERIOR THOMSONITE
SPURRITE: LILAC-COLORED CALC-SILICATE
ARAGONITE, FAULTS AND JACK SLADE
COLORADO CAVALRY: WM. E. THOMPSON
RUBY RED SILVER; PROUSTITE & PYRARGYRITE
HORSESHOE CIRQUE: A COLORADO TREASURE
BRAZILIANITE; AN UNCOMMON PHOSPHATE
GEOLOGICAL SCENES FROM THE BLACK HILLS
FAIRBURN AGATE: WYOMING
REALGAR--PARAREALGAR BLACK HILLS, SD
SEPTEMBER
FORT HAYS LIMESTONE: THE NATIVE
KANSAS CONCRETIONS (CRETACEOUS)
PHONOLITE AT SPEARFISH PEAK, BLACK HILLS
AUGUST
THE GANGPLANK & THE TRANSCONTINENTAL RAILROAD
SLIM BUTTES, SOUTH DAKOTA--GEOLOGY, CROOK AND CUSTER
SOUTH DAKOTA LAKE SUPERIOR AGATE
BLACK HILLS: A MIGHTY BIG CORAL
WISCONSIN LAKE SUPERIOR AGATES
JULY
OPAL: QUEEN OF THE GEMS
KANSAS BARITE ROSES
MORE SERPENTINE!
PECOS DIAMONDS: AUTHIGENIC QUARTZ
UVITE: AN UNCOMMON TOURMALINE
I LOVE THE BLACK HILLS
JUNE
FAULTS: I FEEL THE EARTH MOVE UNDER MY FEET...
SERPENTINE AND HYDROMAGNESITE
GOETHITE FROM GRAVES MTN, GEORGIA
HUNTING FOR TOPAZ: UTAH AND COLORADO
ILVAITE: WHODA THOUGHT
MAY
ROAD TRIP: ARIZONA GHOST TOWNS
ROAD TRIP: SALT LAKE CITY
WOLLASTON, WOLLASTONITE, AND A CAMERA LUCIDA
PYRITE, STARTING FIRES, AND FLAGAN SACKETT
PIETERSITE: THE BEAUTY AND THE BEAST
RARE EARTH MINERALS: PIKES PEAK REGION
A SEARCH FOR SHARPENING STONES AND NOVACULITE
A HUNT FOR COLORADO SAPPHIRE
APRIL
LAIHUNITE: EL PASO COUNTY, COLORADO
SKUTTERUDITE: COBALT-NICKEL ARSENIDE
A NICE BLUE BORON MINERAL: DUMORTIERITE
ANTIMONY MINERALS
LIZARD HEAD: FILL YOUR HAND YOU SOB!
DENVER GEM SHOW: COPPER 2012
ARROJADITE: A RARE PHOSPHATE--BLACK HILLS
KANSAS MINERALS: WEST
MARCH
KANSAS MINERALS: EAST
AEGIRINE: INTERESTING MINERAL
GILSONITE, A COLLECTABLE HYDROCARBON
VALENCIANITE: ADULARIA (K-FELDSPAR)
FEBRUARY
LOST DUTCHMAN & SUPERSTITIONS
ZUNYITE: A COLORADO TYPE MINERAL
TUCSON GEM AND MINERAL SHOW: 2013
KINO SPORTS COMPLEX ROCK SHOW TUCSON: 2013
ARIZONA DESERT ROSES
JANUARY
DARWIN, LYELL & NEWTON
BOOK CLIFFS: BARITE
2012 POSTINGS
DECEMBER
PRECAMBRIAN WYOMING: SNOWY, MEDICINE BOW, LARAMIE &
HARTVILLE RANGES
DIOPSIDE-ACTINOLITE AT CALUMET MINE
NOVEMBER
CINNABAR and MERCURY
HIKING PULPIT ROCK
IDOcrase: WHERE HAVE YOU GONE ?
BLUE-PURPLE HALITE
SPINEL: THE FORGOTTEN GEMSTONE
GREEN RIVER: GATES OF LADORE
OCTOBER
BADGERS, STONEHENGE, AND A FURSTY FERRET
OLD THUMPER & THE THAMES RIVER
SPHENE: A NICE GEMSTONE
COLUMBITE & TANTALITE
MT. ANTERO: HELIODOR & EUCLASE
CALCITE FROM LA GARITA
SEPTEMBER
MT. GUYOT
JELINITE (AMBER): THE HOLY GRAIL OF KANSAS MINERALS
ARIZONA GLAUBERITE PSEUDOMORPHS
AUGUST
PETRIFIED WOOD: WHAT ARE THE STRUCTURES?
GOETHITE, GOETHE, AND KANINCHEN
UTAH PETRIFIED WOOD AND FLOWER CHILDREN
STUMBLING UPON A FAIRBURN AGATE
POLYMORPHS: ANATASE AND BROOKITE
CRACKING ROCKS AT TEEPEE CANYON:AGATES
CROW PEAK: A POCKET LACCOLITH
WOW--SOUTH DAKOTA ARTESIAN WELL
GONIOBASIS SPHERE
SOUTH PARK: MAMMILLARY CHALCEDONY
A MODERN MINING BOOM
WHAT IS THAT GREEN STUFF? "MEDMONTITE"
AGATES AT THE AFMS
JULY
WHOA, NICE CEPHALOPODS!
COLORADO FIRE II
JUNE
COLORADO FIRE
FAIRBURN AGATES: GEM OF SOUTH DAKOTA
ASTROPHYLLITE: A MINERAL FROM THE STARS? NO, ST. PETERS
DOME, COLORADO.
BEAR BUTTE; A LACCOLITH ON THE PRAIRIE
LARGE ZIRCON CRYSTALS FROM ST. PETERS DOME, COLORADO
RIEBECKITE; AN INTERESTING MINERAL
MAY
FOX HILLS FORMATION
COLORADO SILVER, THE SHERMAN BROTHERS, AND MORGANITE
BLM RAC: LOOKING FOR A FEW GOOD MEN AND WOMEN
UTAH AMETHYST AND GEORGE CLOONEY
THE U.S. CIVIL WAR AND UTAH LANDSCAPE
APRIL
AZURITE AT GOLD HILL
WENDOVER WILL AND ADAMITE
STRANGE MARKINGS IN THE THE MOENKOPI FORMATION
TRAVERTINE AT UTAH GEYSERS
MARCH
BROOKITE: TITANIUM DIOXIDE
ADD SOME MAGNESIUM: GET A MOON ROCK
FEBRUARY
WELCOME TO CHAOTIC FUN: QUARTZSITE, ARIZONA
THE 79 MINE: AURICHALCITE
9th CIRCUIT COURT OF APPEALS
COPPER RIVET MINE: COLORADO
KINO SPORTS COMPLEX SHOW 2012
JANUARY
BAKING NEW MEXICO SHALE
A NEW TOY
2011 POSTINGS
DECEMBER
CALCITE SAND CRYSTALS: WYOMING
EXOTIC WATERFALL IN COLORADO
CONICHALCITE: A PRETTY GREEN ROCKSS
NOVEMBER
THE MYSTERY ROCK: FECAL CASTINGS
COLORADO AMETHYST
RMFMS: A GEOLOGICAL MENAGERIE
BUYING MINERALS FRUGALLY
POUDRE RIVER CANYON & LAKE AGNES
OCTOBER
WALKING THE CREEK: COLORADO SPRINGS
DIKES AT WILLOW CREEK
TRACKS/TRAILS WISCONSIN LIMESTONE
THE OTHER RHODOCHROSITE
GEOPHILIA: COMMUNING WITH THE ROCKS
SEPTEMBER
KEEP YOU EYES ON THE GROUND: CHIPPING SITES
JUNE
MINING FOR MANGANESE
COLLECTING AT THE GATOROSA
NOTCH PEAK: GREAT GEOLOGY
MAY
HOT BATH ANYONE? THERMOPOLIS, WY
THE END: FOX HILLS FORMATION
CAMPBELLITE
PROTECTING PYRITE
APRIL
CSMS SILENT AUCTION
IT IS NOT AN AGATE!
UTE VALLEY PARK AND THE LARAMIE FORMATION
BIXBYITE: A MINERAL FOR YOUR COLLECTION; & RED BERYL
MARCH
LOWER COLORADO RIVER TRENCH
BUCKET LIST FOR KIDS
CIENEGA MINING DISTRICT
A HOHOKAM VILLAGE
BASALT AT PICACHO PEAK
BACK IN THE SADDLE AGAIN
FEBRUARY
HIKING PICACHO PEAK
RAGGED TOP: TERTIARY RHYOLITE
CSMS and RMFMS Annual Show
FACETED SPURS: SIGNS OF MOVEMENT
HOHOKAM PETROGLYPHS
SANTA CATALINA MOUNTAINS
GOLD, GOLD, GOLD AT TUCSON
TUCSON ELECTRIC PARK SHOW
SIGNAL BUTTE: A GEOLOGICAL ODDITY
wow! Looks like fun actually ... a good life.
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