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

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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. 73913
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 pale-yellow whitlockite crystal in a small cavity. Ex. Willard Bill L. Roberts (1923-1987), author Mineralogy of the Black Hills (mineral namesake)
Overall Size:16x11x9 mm
Crystals:micro
Archived: For reference only

 

 

 

 

 

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