| Locality type: | Tunnel |
| Classification |
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| Species: | Siderite |
| Formula: | FeCO3 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Siderite data |
| Locality Data: | Click here to view Two Brothers Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 608978 |
| Long-form Identifier: | 1:3:608978:8 |
| GUID (UUID V4): | fac5b68a-abf0-42a5-93e6-52e6e6e0ef32 |
| Nearest other occurrences of Siderite |
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| 1.7km (1.0 miles) | ⓘGalatea adit (Hudson-Burr), Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 1.7km (1.1 miles) | ⓘFreeman Shaft, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 1.8km (1.1 miles) | ⓘFranklin Shaft No. 87, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 1.9km (1.2 miles) | ⓘSilver Age Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 1.9km (1.2 miles) | ⓘVeto Shaft, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 2.7km (1.7 miles) | ⓘBell adit, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 2.8km (1.7 miles) | ⓘCentral City; Cherokee; Carroll; Woodmire; Rara Avis, Eureka Mining District, Gilpin County, Colorado, USA |
| 3.0km (1.8 miles) | ⓘPatch Mine (Glory Hole Mine), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA |
| 3.3km (2.0 miles) | ⓘLake Tunnel - Lower, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA |
| 3.5km (2.2 miles) | ⓘHubert (Prize), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | Nines and Prospects, Idaho Springs District Clear Creek and Gilpin Counties, Colorado Descriptions and Kapa...Energy Commission Introduction The Idoiho Springs mining district forms an important segment of tae Front...From 1859, when placer gold was discovered in Idaho Springs and lode gold in Central City, through 1959...from a 50-square-mile area that includes the Idaho Springs and adjacent districts to the north, west, and...and southwest. The adjacent Central City district, which produced ores valued at more than $100 million |  | | Report (volume) | | Economic Geology of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=) I...Geology of the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado By ROBERT H. MOENCH...___________ Mines and prospects in the Idaho Springs district ________________ Previous studies.____...are in pocket] PLATE 1. Map of the Idaho Springs district, Colorado, showing location of mines and distribution...sections of the Idaho Springs district. 3. Geologic section along the Big Five tunnel. FIGURE 1. Map |  | | Report (issue) | | Deposits Central Part of the Front Range Mineral Belt Colorado By P. K. SIMS and others GEOLOGICAL SURVEY PROFESSIONAL...______________________________ _ History of uranium mining and production ____________ _ Geologic setting...__________ - ___ - ________ -----------Central City district _____________________ ------Quartz Hill-upper... _ West Flack mine __________________ _ ~ercer County mine ______________ -German and Belcher mines ______________...-------------------St. Anthony and R.H.D. mines __________ _ Two Sisters mine _____________________ - _ Justice Hill |  | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction...Metamorphic rocks ________________________ _ Idaho Springs formation _______________ _ Swandy ke hornblende...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________ |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...1978 $37.00 - ,• Abstract This two-part report provides an essentially camp I ete 11 st r ng of rad...rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic cross-indexes |
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