Mine detail: Grays Peak Opal Deposit

Previously called ''

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Location

Lat / long:

44.83568, -115.06815

Resource(N)

Tertiary:	Gemstone
Ore:	Opal
Gangue:	Limonite
Orebody form:	PODS, STRINGERS

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	None
Development status:	Occurrence

Geology

Host type:	Rhyolite
Associated rock:	Challis Volcanics-Rhyolite Porphyry;Challis Volcanics-Rhyolite With Obsidian
Associated type:	Rhyolite
Alteration processes:	Silicification

References

MRDS	W014015
DEP	10070888
Reference	{Deposit:: CATER, F. W., AND OTHERS, 1973, MINERAL RESOURCES OF THE IDAHO PRIMITIVE AREA AND VICINITY, IDAHO: USGS BULL. 1304, 431 P}{Deposit:: 1973 RECON CATER, F. W., AND OTHERS, BULL. 130}
Reporter	Miller, Pat J.