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Biotite from
Fred Pierce Ranch (Ramstetter Quarry), Front Range, Jefferson Co., Colorado, USA

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Fred Pierce Ranch (Ramstetter Quarry), Front Range, Jefferson Co., Colorado, USA
Nearest other occurrences of Biotite
2.9km (1.8 miles) Aubrey - Ladwig Mine (Aubrey Ladwig Lease; Gary Mine), Ralston Buttes District, Jefferson Co., Colorado, USA
3.5km (2.2 miles) Cressmans Gulch Mine (Cressmans Gulch pegmatite), Clear Creek pegmatite Province, Jefferson Co., Colorado, USA
4.8km (3.0 miles) Ladwig, Ralston Buttes District, Jefferson Co., Colorado, USA
6.3km (3.9 miles) Roscoe Beryl Mine (Roscoe pegmatite), Clear Creek pegmatite Province, Jefferson Co., Colorado, USA
6.5km (4.0 miles) Hosa Lodge Mine, Evergreen District (Malachite District), Jefferson Co., Colorado, USA
7.9km (4.9 miles) Schwartzwalder Mine (Ralston Creek Mine), Ralston Buttes District, Jefferson Co., Colorado, USA
9.1km (5.6 miles) Hiwan Ranch, Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA
9.4km (5.8 miles) Strang Pegmatite Occurrence (S. B. Strang Ralston Creek Pegmatite), Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA
9.9km (6.2 miles) Old Soda Creek School Pegmatite, Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA
10.7km (6.7 miles) Burroughs Mine (Traut-Rudin-Anderson Pegmatite; Sunrise Peak Mine), Clear Creek pegmatite Province, Jefferson Co., Colorado, USA
10.8km (6.7 miles) F.M.D. Mine, Evergreen District (Malachite District), Jefferson Co., Colorado, USA
12.0km (7.5 miles) Ajax Mica Mine (Floyd Hill Mica Mine), Clear Creek Pegmatite Province, Clear Creek Co., Colorado, USA
13.0km (8.0 miles) Seven Hills - Yetter Ranch Pegmatite Occurrence, Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA
13.3km (8.3 miles) Wright Lease (Foothills Mine), Idledale District, Jefferson Co., Colorado, USA
14.4km (8.9 miles) Grover Mine (Grover pegmatite; Windsor), Clear Creek Co., Colorado, USA
17.4km (10.8 miles) Mt. Judge Beryl Pegmatite, Clear Creek Pegmatite Province, Clear Creek Co., Colorado, USA
18.0km (11.2 miles) Burlington - Iowa Group, Central City District, Gilpin Co., Colorado, USA
19.4km (12.1 miles) Hudson Tunnel, Idaho Springs District, Clear Creek Co., Colorado, USA
22.5km (14.0 miles) Iowa Gulch Occurrence (Iowa Gulch Pegmatite), Jefferson Co., Colorado, USA
23.3km (14.5 miles) Nye - Mathews (Wilma Mine), Apex District, Gilpin Co., Colorado, USA
23.9km (14.8 miles) Martha E. Adit, Jackson District (Corral District), Clear Creek Co., Colorado, USA
24.6km (15.3 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 District, Clear Creek Co., Colorado, USA
24.8km (15.4 miles) Bigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson Co., Colorado, USA
28.2km (17.5 miles) Murry Mine, Lawson District (Dumont District), Clear Creek Co., Colorado, USA
33.0km (20.5 miles) Wilson beryl prospect, Gold Hill District, Boulder Co., Colorado, USA
36.7km (22.8 miles) Butterfield pegmatites, South Platte Pegmatite District, Jefferson Co., Colorado, USA
40.6km (25.2 miles) Seerie pegmatite (Cooper pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
41.2km (25.6 miles) Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
43.6km (27.1 miles) Oregon No. 2 pegmatite (Raleigh Peak No. 3 pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA
43.8km (27.2 miles) White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA
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