AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Utah > Quartz pseudomorphs after Topaz

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Quartz pseudomorphs after Topaz from Thomas Range, Juab County, Utah

 
Quartz pseudomorphs after Topaz from Thomas Range, Juab County, Utah

Quartz pseudomorphs after Topaz from Thomas Range, Juab County, Utah

DESCRIPTION:No. 70868
Mineral:Quartz pseudomorphs after Topaz
Locality:Thomas Range, Juab County, Utah
Description:Unusual quartz pseudomorph after prismatic topaz crystals to 20 mm. The pseudomorphs appear to be just rhyolite-included topaz, but hardness equals quartz and there is no evidence of a cleavage plane that would be present if it were still topaz. Collected ca. 1970
Overall Size:35x19x16 mm
Crystals:5-20 mm pseudos
Archived: For reference only

 

 

 

 

 

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