Mine detail: Eagle - Shawmut

Previously called ''

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Location

Lat / long: 37.86714, -120.39656

Resource(M)

Primary: Gold
Ore: Gold, Pyrite
Gangue: Ankerite, Quartz

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer

Geology

Host type:Slate,Schist
Associated type:Pyroxenite
Structure:See Comments
Alteration processes:Pyroxenite Intrusive Has Been Sheared And Altered To Multiform Chlorite Schist And Subsequently Ankerized And Silicified. Chlorite Schist Sometimes Resembles Serpentine Schist Due To The Lusterous Green; In Places This Rock Has A Pseudomorphic Texture Much Like Serpentinized Peridotite But The Phenocrysts Instead Of Being Bastite Are Chlorite Embedded In A Fine-Grained Chlorite Matrix.

References

MRDSW025943
DEP10077877
Reference{Deposit:: KNOPF, A., 1929 , THE MOTHER LODE SYSTEM OF CAL.: U.S.G.S. PROF. PAPER 157 , P. 79}{Deposit:: TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 146}
ReporterAlbers, J.; Tatkin, T.