AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Canada > Quartz-Opal var. Siliceous Sinter

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

   

Quartz-Opal var. Siliceous Sinter from McKay's Head, Nova Scotia, Canada

 
Quartz-Opal var. Siliceous Sinter from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter from McKay's Head, Nova Scotia, Canada

DESCRIPTION:No. 48010
Mineral:Quartz-Opal var. Siliceous Sinter
Locality:McKay's Head, Nova Scotia, Canada
Description:Star-shaped formation of siliceous sinter, a fine grained layered silica deposited in a geyser that may be composed of quartz, opal, or both. Clearly the underlying form is that of quartz crystals, but the outer layers are microcrystalline. S.G.=2.49 Collected in 1995
Overall Size:4x3.5x2 cm
Crystals:micro to 15 mm
Archived: For reference only

 

 

 

 

 

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