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Big Boulder Mine (Big Boulder Beryl Mine), Crystal Mountain Pegmatite District (Storm Mountain District), Larimer Co., Colorado, USA

Ref. Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 29 (Table A-1); Rocks & Min.:62:234-235.

A beryl mine located at 1575' FEL, 400'FSL, SE¼ sec. 36, T7N, R72W.

Mineralization is a zoned pegmatite body concordant to mica schist.

Workings include 2 open cuts, a shaft, several small pits and 5 drill holes.





Mineral List:
Albite
Alluaudite
'Apatite'
Apatite-(CaF)
Apatite-(CaOH)
Autunite
Beryl
'Dravite-Schorl Series'
Ferrisicklerite
'Garnet Group'
Graftonite
'Gummite'
Leucophosphite
Microcline
Muscovite
Phosphosiderite
Purpurite
Quartz
Spodumene
Tantalite
Tantalite-(Fe)
Torbernite
'Tourmaline'
Triphylite
Triplite
Uraninite
Vivianite


27 entries listed. 21 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Colorado, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 23rd Nov 2009 19:44:48