AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Thorite and Zircon var. Cyrtolite with trace Hafnium

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

   

Thorite and Zircon var. Cyrtolite with trace Hafnium from South Platte District, Jefferson County, Colorado

 
Thorite and Zircon var. Cyrtolite with trace Hafnium from South Platte District, Jefferson County, Colorado

Thorite and Zircon var. Cyrtolite with trace Hafnium from South Platte District, Jefferson County, Colorado

Thorite and Zircon var. Cyrtolite with trace Hafnium from South Platte District, Jefferson County, Colorado

DESCRIPTION:No. 52142
Mineral:Thorite and Zircon var. Cyrtolite with trace Hafnium
Locality:South Platte District, Jefferson County, Colorado
Description:Yellow-earthy ferri-thorite with brown zircon var. cyrtolite, and red-brown thorite. Old label states it contains trace amounts of hafnium. Radioactive Ex. Peter B. Nalle (1923-2010) collection
Overall Size:8x6x4 cm
Crystals:
Archived: For reference only

 

 

 

 

 

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