AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from California > Opal pseudomorphs after Serandite

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Opal pseudomorphs after Serandite from Dallas Gem Mine, San Benito County, California

 
Opal pseudomorphs after Serandite from Dallas Gem Mine, San Benito County, California

Opal pseudomorphs after Serandite from Dallas Gem Mine, San Benito County, California

DESCRIPTION:No. 40904
Mineral:Opal pseudomorphs after Serandite
Locality:Dallas Gem Mine, San Benito County, California
Description:Brown opal (amorphous silica) pseudomorphs after prismatic serandite crystals up to 2.5 mm long exposed in white natrolite matrix with black neptunite. See Mineralogical Record v.8 #6, page 450 for a description of this occurrence. Ex. C. Cook collection.
Overall Size:5x3.5x2.5 cm
Crystals:1-2.5 mm
Archived: For reference only

 

 

 

 

 

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