Mine detail: Theodora Copper Mine

Previously called ''

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Location

Lat / long:

38.94975, -77.42302

Resource(M)

Primary:	Copper
Secondary:	Silver
Ore:	Chalcopyrite
Gangue:	Epidote, Hematite, Quartz
Discovery year:	1879

Production

Operation type:	Unknown
Deposit type:	Contact Metasomatic
Production size:	Small
Development status:	Past Producer
First production started:	1880

Geology

Host type:	Sandstone
Associated rock:	Diabase
Associated type:	Diabase
Structure:	Ne-Sw Trend Culpeper Triassic Basin
Alteration processes:	Contact Metasomatism Of Shale And Sandstone By Diabase Intrusion.

References

MRDS	W055389
DEP	10082546
Reference	{Deposit:: THE VIRGINIAS, 1880, COPPER VOL.1, NO.4, P.53}{Deposit:: BERNSTEIN, L.R., 1980, MINERALS OF THE WASHINGTON, D.C. AREA, DEPT. OF NATURAL RESOURCES, MARYLAND GEOLOGICAL SURVEY, EDUCATIONAL SERIES NO.5, 148P.}
Reporter	Sweet, Palmer C.