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West side of Horse Mountain, Horse Mountain, Coastal Range, Humboldt Co., California, USA

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Detailed Mineral List:

Albite
Formula:	NaAlSi₃O₈
Reference:	Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 484.







Calcite
Formula:	CaCO₃
Reference:	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 176.







Epidote
Formula:	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Description:	Occurs as large prisms with calcite in schist; prismatic crystals and sprays to 2 cm or more long with albite.
Reference:	Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 176; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 484.

3 entries listed. 3 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in California, 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 22nd Jun 2011 08:49:35