Big Bertha Mine (Big Bertha pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA

Ref.: Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Series 11; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).

A pegmatite mine located in the SW¼ Sec 22, T.8S., R.70W.

Mineralization is an unzoned, lobate pegmatite body in granite.

Workings include a large open cut.

Mineral List:

	'Allanite'

	Fluorite

	'Gadolinite'

	'Monazite'

	Synchysite-(Y)

	Thorite

	Thorogummite

	Xenotime-(Y)

	'Yttrocerite'

	Zircon var: Cyrtolite

10 entries listed. 4 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!

This page is currently not sponsored. Click here to find out how you can sponsor this page.

Copyright © Jolyon & Ida Ralph 1993-2008. 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.