US Mines listed rhyolite flows

Rhyolitic flows can have high concentrations of fluorine gas dissolved in the lava which allows the rhyolite to become more fluid. Fluorine gas is a key component in the formation of topaz. These mines listed have the potential to have topaz.

I collected topaz crystals from a couple rhyolite locations in Colorado and Nevada. Almandine garnets are often found with topaz in rhyolite deposits.

Name State County Lat Long Township Range Section
94 Rows Data exported from DRC 3.04 (c) 2012 Gary Kindel
N/A COLORADO CUSTER N/A N/A N/A N/A N/A
N/A COLORADO CUSTER N/A N/A N/A N/A N/A
ALASKA GROUP NEW MEXICO SIERRA 33.43 -107.747778 010 S 009 W 22
ALLIED MINE GROUP E. ALASKA PA 56.906944 -134.291667 057 S 071 E 19
ANDIES MINE NEVADA LINCOLN 37.560833 -115.745833 005 S 056 E 04
ARIZONA STANDARD MINING AND MILL CO ARIZONA YAVAPAI 34.083056 -112.491944 009 N 002 W 32
BIG BUCK PROSPECT NEVADA LINCOLN 38.404167 -114.320833 006 N 068 E 02
BLACK BIRD PROSPECT (1930) NEW MEXICO SOCORRO 33.9286 -107.3531 N/A N/A N/A
BOLTON MINE NEW MEXICO GRANT 32.6525 -108.443333 019 S 016 W 24
BOSS-BIXBY DEPOSIT MISSOURI DENT, IRON 37.6425 -91.178889 034 N 002 W 17
BROWN MINE NORTH CAROLINA MOORE 35.423056 -79.622222 N/A N/A N/A
BUCKHORN PROPERTY ARIZONA YAVAPAI 34.012222 -112.470556 008 N 002 W 28
BYERTS TUNNEL NEW MEXICO SOCORRO 34.063889 -106.948056 003 S 001 W 09
CACTUS GROUP NOS. 1-12 NEVADA HUMBOLDT 41.1444 -119.0958 N/A N/A N/A
CAMP GREGORY MINE NEVADA CHURCHILL 39.378333 -118.926111 018 N 027 E 33
CANARY UTAH BEAVER 38.381944 -112.54 028 S 006 W 09
CHAMPIE COPPER ARIZONA YAVAPAI 34.0775 -112.475833 009 N 002 W 33
CHARLOTTE GAY PLACER IDAHO CUSTER 44.323333 -114.718889 012 N 015 E 32
COPPEROPOLIS 23 ARIZONA YAVAPAI 34.036389 -112.466667 008 N 002 W 16
CORNWALLIS PENINSULA ALASKA PA 56.925 -134.2 057 S 071 E 15
CORNWALLIS PENINSULA ALASKA PA 56.908333 -134.191667 057 S 071 E 23
CURLY WRIGHT NEVADA NYE 36.963889 -116.651389 011 S 048 E 30
DENVER MINE CALIFORNIA SAN BERNARDINO 35.041944 -115.192778 011 N 017 E 18
DIATOMITE DEPOSIT NEVADA PERSHING 40.238611 -118.7875 027 N 028 E 01
DML 6S CLAIM UTAH JUAB 39.733056 -112.583611 012 S 007 W 36
DONALDSON PROSPECT OREGON JACKSON 42.651389 -122.779722 033 S 001 W 35
EAGLE MOUNTAINS FLUORSPAR DISTRICT TEXAS HUDSPETH 30.9333 -105.0583 N/A N/A N/A
EARTH SCIENCE ALUNITE DEPOSIT UTAH BEAVER 38.275556 -113.524167 029 S 015 W 22
EASTERN MINE NEVADA LINCOLN 37.437778 -114.741111 006 S 065 E 08
ELKO PRINCE NEVADA ELKO 41.243889 -116.8 039 N 046 E 20
EUREKA PROSPECT NEVADA NYE 38.703889 -117.020556 010 N 044 E 22
F AND L MINE NEVADA ESMERALDA 37.9 -118.242778 001 N 033 E 36
FAIRVIEW COLORADO SAN JUAN 37.788889 -107.670833 041 N 007 W 20
FRISCO ARIZONA MOHAVE 35.211667 -114.415833 021 N 020 W 16
GAMBLE PLACER TIN PROSPECT NEVADA LANDER 40.945 -116.880833 035 N 045 E 02
GAMBLE TIN LODE PROSPECT NEVADA LANDER 40.964444 -116.882778 036 N 045 E 27
GOLDBANKS QUICKSILVER MINE NEVADA PERSHING 40.474444 -117.678611 030 N 038 E 14
GOLDEN ASTER ARIZONA YAVAPAI 34.094722 -112.454722 009 N 001 W 27
GRAVEL PIT IDAHO TETON 43.816111 -111.1475 006 N 045 E 28
GRAY PROSPECT OREGON LAKE 42.533889 -119.981389 035 S 023 E 14
GREAT LAKES CARBON CORP. SOCORRO DEPOSIT NEW MEXICO SOCORRO 34.0225 -106.9003 N/A N/A N/A
HALIFAX NEVADA NYE 38.071944 -117.206111 003 N 042 E 36
HANSON RANCH URANIUM OREGON JACKSON 42.641944 -122.905278 034 S 002 W 02
HOYT MINE NEVADA CHURCHILL 39.771944 -117.763889 022 N 037 E 13
H-Y IDAHO VALLEY 44.948333 -115.140278 019 N 011 E 29
JELINEK NEVADA CHURCHILL 39.202222 -118.184722 016 N 034 E 32
JOKER M S 1247 ARIZONA YAVAPAI 34.078889 -112.459444 009 N 002 W 34
JUMBO GROUP IDAHO VALLEY 44.961389 -115.128889 019 N 011 E 29
KATHERINE RAND ARIZONA MOHAVE 35.228889 -114.546944 021 N 021 W 05
KEKU STRAIT LIMESTONE ALASKA PA 56.922222 -134.195833 057 S 071 E 14
LANDMARK-LIFE PRESERVER GROUP NEVADA NYE 37.288056 -116.785 007 S 046 E 36
LANGLEY ARIZONA SANTA CRUZ 31.380833 -110.692778 023 S 016 E 35
MAYFLOWER NEVADA LANDER 40.9656 -116.8603 N/A N/A N/A
MCDERMITT MINE NEVADA HUMBOLDT 41.920278 -117.810278 047 N 037 E 27
MODOC MINE NEVADA LANDER 40.531111 -117.181389 031 N 042 E 24
NAME UNKNOWN PERLITE DEPOSIT NEW MEXICO SIERRA 32.6814 -107.5183 N/A N/A N/A
NATIONAL MINE NEVADA HUMBOLDT 41.835556 -117.573333 046 N 039 E 27
NBMG SAMPLE SITE 1491 NEVADA PERSHING 40.503333 -118.740278 031 N 029 E 32
NIVLOC MINE NEVADA ESMERALDA 37.716111 -117.757222 002 S 038 E 33
NORTH VEIN IDAHO LEMHI 44.856111 -114.498889 018 N 017 E 30
ORIGINAL GILBERT NEVADA ESMERALDA 38.11 -117.713056 003 N 038 E 16
PEAK CLAIMS (NOS.1-12) NEVADA LINCOLN 37.958611 -114.05 001 N 071 E 08
PITTSBURG SILVER NEVADA ELKO 41.818889 -115.690278 045 N 056 E 05
PORPHYRY DIKE MONTANA LEWIS AND CLARK 46.428056 -112.286389 008 N 006 W 24
POUGHKEEPSIE COLORADO SAN JUAN 37.940278 -107.625 042 N 007 W 03
PUMICE DEPOSIT IDAHO TETON 43.8111 -111.1442 N/A N/A N/A
RAMSEY MINE ARIZONA LA PAZ 33.628889 -113.978333 003 N 017 W 02
REED MINE NORTH CAROLINA CABARRUS 35.284444 -80.464444 N/A N/A N/A
ROCHESTER NEVADA PERSHING 40.289722 -118.2 028 N 034 E 16
ROCKLAND MINE NEVADA LYON 38.646667 -119.093611 009 N 026 E 17
ROGERS-BURNISON PROPERTY NEVADA HUMBOLDT 41.383333 -118.363889 041 N 032 E 35
ROWLEY ARIZONA MARICOPA 33.048889 -113.032778 004 S 008 W 25
SEVEN TROUGHS ROYAL GROUP NEVADA PERSHING 40.539167 -118.73 031 N 029 E 21
SHEPARD PROPERTY NEVADA NYE 36.948333 -116.638333 011 S 048 E 29
SILVER PROSPECT NEVADA PERSHING 40.332222 -118.2325 029 N 033 E 35
SILVER QUEEN NEVADA ESMERALDA 37.7625 -117.795278 002 S 038 E 18
STANDARD IDAHO VALLEY 44.951389 -115.136111 019 N 011 E 29
STONEWALL NEW MEXICO SOCORRO 34.093611 -107.190556 002 S 003 W 31
SWALLOW ARIZONA YAVAPAI 34.057778 -112.511389 008 N 002 W 06
T AND M PROSPECT OREGON DOUGLAS 42.798611 -122.787222 032 S 001 W 11
THUNDER MOUNTAIN IDAHO VALLEY 44.955556 -115.133611 019 N 011 E 29
TRINITY SILVER PROSPECT NEVADA PERSHING 40.396667 -118.610278 029 N 030 E 09
UNKNOWN PROSPECT UTAH MILLARD 39.444167 -112.851667 016 S 009 W 10
UNKNOWN PROSPECT UTAH MILLARD 39.431667 -112.846111 016 S 009 W 15
UNKNOWN PROSPECT UTAH MILLARD 39.494722 -112.965556 015 S 010 W 22
UNKNOWN PROSPECT NEVADA ELKO 40.7483 -114.2728 N/A N/A N/A
UNNAMED BASE METAL OCCURRENCE NORTH CAROLINA DAVIDSON 35.7022 -80.125 N/A N/A N/A
UTAH DEPT OF HIGHWAYS PIT NO 16001 UTAH PIUTE 38.488611 -112.243333 027 S 003 W 06
VERMILLION NEVADA HUMBOLDT 41.3722 -118.2219 N/A N/A N/A
VERMILLION PROSPECT NEVADA HUMBOLDT 41.3722 -118.2219 N/A N/A N/A
WHIPSAW ARIZONA YAVAPAI 34.046944 -112.480278 008 N 002 W 08
WHITE CLAY PIT UTAH BOX ELDER 41.520278 -113.840278 009 N 017 W 07
WILD ROSE MINE NEVADA ESMERALDA 37.933333 -118.305278 001 N 033 E 21
ZALLA M MINE WASHINGTON FERRY 48.761944 -118.829167 038 N 032 E 30

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