AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Dakota > Robertsite with Whitlockite

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

   

Robertsite with Whitlockite from Tip Top Mine, Custer County, South Dakota (Type Locality for Robertsite)

 
Robertsite with Whitlockite from Tip Top Mine, Custer County, South Dakota (Type Locality for Robertsite)

Robertsite with Whitlockite from Tip Top Mine, Custer County, South Dakota (Type Locality for Robertsite)

Robertsite with Whitlockite from Tip Top Mine, Custer County, South Dakota (Type Locality for Robertsite)

DESCRIPTION:No. 73912
Mineral:Robertsite with Whitlockite
Locality:Tip Top Mine, Custer County, South Dakota (Type Locality for Robertsite)
Description:Dark brown-black robertsite microcrystals in hemispherical aggregates in a small cavity in dark red-brown crystallized phosphate matrix with yellow unidentified mineral (whiteite?) and a colorless transparent whitlockite crystal in a small cavity. Ex. Willard Bill L. Roberts (1923-1987), author Mineralogy of the Black Hills (mineral namesake)
Overall Size:12x10x6 mm
Crystals:micro
Archived: For reference only

 

 

 

 

 

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