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Biotite from
Hudson Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA

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Locality type:Tunnel
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Hudson Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493333
Long-form Identifier:1:3:493333:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.0km (1.2 miles)ⓘWaterloo Mine, Russell Gulch, Gilpin County, Colorado, USA
4.2km (2.6 miles)ⓘBurlington - Iowa Group, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
5.1km (3.2 miles)ⓘMartha E. Adit, Jackson Mining District (Corral Mining District), Clear Creek County, Colorado, USA
5.6km (3.5 miles)ⓘBell of the West (Martha E; Billie; Ariadne; Little Topsy; Bruce; Alabama; Yankee Girl; Mammoth; Le Roi; Black; Emily; Crazy Girl; Baby Eddy), Lamartine Mining District, Clear Creek County, Colorado, USA
6.4km (3.9 miles)ⓘDevils Canyon, Clear Creek County, Colorado, USA
7.8km (4.8 miles)ⓘAjax Mica Mine (Floyd Hill Mica Mine), Clear Creek Pegmatite Province, Clear Creek County, Colorado, USA
8.0km (4.9 miles)ⓘGrover Mine (Grover pegmatite; Windsor), Clear Creek County, Colorado, USA
8.8km (5.5 miles)ⓘMurry Mine, Lawson Mining District (Dumont Mining District; Montana Mining District), Clear Creek County, Colorado, USA
11.9km (7.4 miles)ⓘNye-Mathews mine (Wilma mine), Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA
12.4km (7.7 miles)ⓘMt. Judge Beryl Pegmatite, Clear Creek Pegmatite Province, Clear Creek County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997)Minerals of Colorado. Fulcrum Publishing.
Reference Search (possible matching items)
Sims, P.K. (1963) Geology of uranium and associated ore deposits, central part of the Front Range mineral belt, Colorado.Professional Paper 371. US Geological Surveydoi:10.3133/pp371
Report (issue)
DepositsCentral Part of theFront Range Mineral BeltColoradoBy P. K. SIMS and othersGEOLOGICAL SURVEY PROFESSIONAL...______________________________ _History of uraniummining and production ____________ _Geologic setting..._ _Uranium-bearing pegmatite _____________ _Biotite..m uscovite granite _______________ _Tertiary...__________ - ___ - ________ -----------Central Citydistrict _____________________ ------Quartz Hill-upper... _West Flack mine __________________ _~ercerCounty mine ______________ -German and Belcher mines ______________
(1964) Geology of Precambrian rocks, Idaho Springs district, Colorado.Bulletin 1182a. US Geological Surveydoi:10.3133/b1182a
Report (issue)
(A) Geology of Precambrian rocks,IdahoSpringsdistrict,Colorado, byRobert H. Moench.(B) Geology... Geology of PrecambrianRocks,IdahoSpringsDistrict,ColoradoBy ROBERT H. MOENCHCONTRIBUTIONS...____________Biotite gneiss__ __________ __________________ __ _____ ______ _ _Biotite-quartz-plagioclase... gneiss_________________________Sillimaniticbiotite-quartz gneiss_________________________Granite...Microcline gneiss (microcline-quartz-plagioclase-biotite gneiss)___Quartz gneiss ________________________________
(1964) Geology of uranium deposits in the Front Range, Colorado.Bulletin 1159. US Geological Surveydoi:10.3133/b1159
Report (issue)
Geology of UraniumDeposits in theFront Range,ColoradoBy P. K. SIMS and D. M. SHERIDANWith sections...mines_______________________________________BoulderCountY----------------------------------~-----------Jamestown...Description of principal mines-ContinuedBoulderCounty-ContinuedOther areas __________________________...____________ClearCreekCountY------------------------------------------IdahoSprings and adjacent...__________ ------_____________________7172GilpinCountY-----------------------------------------------Central
(1958) Selected annotated bibliography of the uranium geology of igneous and metamorphic rocks in the United States.Bulletin 1059e. US Geological Surveydoi:10.3133/b1059e
Report (issue)
given and iscompared with the percentages ofbiotite, potash, and ferrous oxide inthese granites. In...the total amount of radiumincreases with thebiotite content. No correlation was found betweenradium...high of 4.56alphas per mg per hr in samples ofbiotite granite. The radioactivity ofindividual rock specimens...associated with a decrease in thepotash feldspar,biotite, and apatite content; it is caused primarily by...increase is not caused by an increase in potash orbiotitecontent (references 7 and 21). Except for the White
Lovering, T.S., Goddard, E.N. (1950) Geology and ore deposits of the Front Range, Colorado.Professional Paper 223. US Geological Surveydoi:10.3133/pp223
Report (issue)
Geologyand Ore Depositsof the Front RangeColoradoBy T. S. LO\'ERING and E. N. GODDARDGEOLOGICAL...cooperation with theColorado State Geological Survey Boardand theColorado MetalMining Fund~ oopr is...__________________________________________ _1Summary ofmining districts---.---------------------Introduction...Metamorphic rocks ________________________ _IdahoSprings formation _______________ _Swandy ke hornblende...hornblende gneiss ____________ _Quartzite at CoalCreek ________________ _Igneous rocks _____________________________
(1941, July)Rocks and Minerals Vol. 16 (7) Peter Zodac
Journal (issue)
...................THE GEOLOGY OF THE LINCOLNTUNNEL, PART 4.234By Thomas W. Ftuhr ..................................MINERALS OF THE BlJ'I"I EDISTRICT. By Peter A. S111ith ..... ....A MINERAL TRIP...ASSOCIATIONWhole No. 120THE GEOLOGY OF THE LINCOLNTUNNELPART4By THOMAS W. FLUHRthe south tube, the first...enter thetwo hydraulically-operated doors for tak-tunnel while 75 % was displaced anding in the silt. The...taken in a brass cylinder, to remain until thetunnel had been comand on being brought to the st~rface
Lindgren, Waldemar, Graton, L.C., Gordon, C.H. (1910) The ore deposits of New Mexico.Professional Paper 68. US Geological Surveydoi:10.3133/pp68
Report (issue)
...... ·- ......... .J,5Historical sketch ofmining and smelting in New Mexico....... . . . . . ..... : . .............. - ........ .. .82. T~osCounty, by L. C. Graton and W ..Lindgren ..... ................. . . , ... -.. .Rio Hondo. (Twining)district . . . . . . . . . . . . . ......................-..... ; . ~ .- ~ .....83• 83_.84Red Riverdistrict. ..................•......... -~ . . ................. .... . . .............. . . .87BitterCreek and Independence mine ........-............ ...
(1941, April)Rocks and Minerals Vol. 16 (4) Peter Zodac
Journal (issue)
...................THE GEOLOGY OF THE LINCOLNTUNNEL. PART 1.By T homas W. Fluhr ....................specimens whose localities are given simply as acounty or province, or what isworse yet, state or country...GEOLOGY OF TH E LINCOLNTUNNELPart 1By THOMAS W. FLUHRThe LincolnTunnel crosses the Hud- up sections...project. The Lincoln Tun• ways, Park Ave. andHudsonCountynel embraces a complicated system of via- Boulevard...means of a complicated system of apThe LincolnTunnel project, at first proach ramps and a bridge. These
Freeman, C.J., Schaefer, Janet (1999) Alaska resource data file; Livengood quadrangle.Open-File Report Vol. 1999 (99-574) US Geological Surveydoi:10.3133/ofr99574
Report (issue)
Resource Data FileLG001Site name(s): TroublesomeCreekSite type: MineARDFno.: LG001Latitude: 65.506...placer mine is along TroublesomeCreek, just below the mouth of UnionCreek; NW1/4SW1/4 sec. 22, T. 8 N....found in TroublesomeCreek (Prindle and Katz, 1913, p. 146).Both prospecting andmining have been reported...p. 192). A sample frombelow the mouth of UnionCreek contained barite, hematite, magnetite, ilmenite...LG001Workings/exploration:Both prospecting andmining have been reported (Mertie, 1934, p. 192).Production
Barnett, John C., Miller, Lance D. (2003) Alaska Resource Data File, Juneau quadrangle, Alaska.Open-File Report 2003-456. US Geological Surveydoi:10.3133/ofr03456
Report (issue)
others, 1989). The area was covered by 600 federalmining claimsin 1989, and more than 5000 feet of drilling...others, 1989). The area was covered by 600 federalmining claims in 1989 and more than 5000 feet of drilling...a unit of very fine-grained chlorite-sericite-biotite schist over 1000 feetthick that includes metatuff...Placer Dome U.S. The areawas covered by 600 federalmining claims in 1989 and more than 5000 feet of drilling...Placer Dome U.S. The area was covered by 600 federalmining claims in 1989 and more than 5000 feet of drilling
 
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