Mine detail: Mac-Holmes Mine

Previously called 'Valley MineCaponetto Properties'

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Location

Lat / long:

34.1868, -93.58326

Resource(M)

Primary:	Mercury
Tertiary:	Antimony
Ore:	Calomel, Cinnabar, Metacinnabar, Stibiconite, Stibnite
Gangue:	Dickite, Goethite, Pyrite, Quartz, Siderite
Discovery year:	1931

Production

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

Geology

Host rock:	Jackfork Formation, Sandstone & Shale;Stanley Shale, Gap Ridge Sandstone Member, Sandstone
Host type:	Sandstone
Structure:	Thrust Faults, N-S Tear Faults, And Two Fold Systems ; Reg.Trends: Thrust Faults From S In Late Paleozoic, Thrust Faults, Close Folds
Alteration processes:	Argillic Alteration

References

MRDS	M055067
DEP	10040346
Reference	{Deposit:: USGS, 1937, BULL. 886-C}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Production:: USBM DATA}
Reporter	Bergquist, Joel R.