Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Opal from
Three Forks Placer, Gallatin County, Montana, USA


01299110017272274833716.jpg
Opal

Three Forks Placer, Gallatin County, Montana, USA
01299110017272274833716.jpg
Opal

Three Forks Placer, Gallatin County, Montana, USA
01299110017272274833716.jpg
Opal

Three Forks Placer, Gallatin County, Montana, USA
Locality type:Placer
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Three Forks Placer, Gallatin County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:574835
Long-form Identifier:1:3:574835:8
GUID (UUID V4):0
Nearest other occurrences of Opal
36.6km (22.7 miles) ⓘRed Bluff, Lower Hot Springs Mining District (Norris Mining District), Madison County, Montana, USA
52.5km (32.6 miles) ⓘGolden Curry Mine (Sourdough mine; Jacqueline; Jacquemin), Elkhorn Mining District, Jefferson County, Montana, USA
68.9km (42.8 miles) ⓘW. Wilson Mine (Liverpool Mine), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
74.3km (46.2 miles) ⓘHyalite Peak, Gallatin County, Montana, USA
89.6km (55.7 miles) ⓘDutro Mine (Old Dominion), Blue Cloud Mining District, Lewis and Clark County, Montana, USA
94.1km (58.5 miles) ⓘGallatin Petrified Forest, Park County, Montana, USA
References
Lavinsky, Rob (n.d.) Specimens previously handled by The Arkenstone.
 
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