Mine detail: Isolde Mine

Previously called 'Patented Claims: Inez, MS 2154Hollister, MS 2155Philadelphia, MS 2156Baltimore, MS 2157Isolde, MS 15635Dupre, MS 15635Belcher, MS 15635Unpatented Claims: Worl
* Fair Nos. 1-12'

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Location

Lat / long:

37.95029, -107.52981

Resource(M)

Primary:	Gold, Silver, Lead
Tertiary:	Zinc, Tellurium
Ore:	Calaverite, Pyrite, Sphalerite
Gangue:	Quartz

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics
Host type:	Sandstone,Quartz Latite
Associated rock:	Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics
Associated type:	Quartz Latite
Structure:	San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Silverton Caldera, Eureka Graben
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D011656
DEP	10014744
Reference	{Deposit:: BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY. COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.}{Deposit:: LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.}{Deposit:: WOOLSEY, L.H., 1907, LAKE FORK EXTENSION OF THE SILVERTON MINING AREA, COLORADO: USGS BULL. 315, P. 26-30.}{Deposit:: LUEDKE, R.G., AND BURBANK, W.S., 1975, PRELIMINARY GEOLOGIC MAP OF THE HANDIES PEAK QUADRANGLE, COLORADO: USGS OPEN-FILE REPT. OFR-75-431.}{Deposit:: COLORADO DIV. MINES INF. REPTS.}{Deposit:: BLM MINERAL SURVEY MS 2154, 2155, 2156, 2157, 15635}
Reporter	Schwochow, Stephen D.