AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Jersey > Willemite var. Troostite

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Willemite var. Troostite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

 
Willemite var. Troostite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

Willemite var. Troostite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

Willemite var. Troostite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

Photo below under shortwave ultraviolet illumination:
Willemite var. Troostite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

DESCRIPTION:No. 44806
Mineral:Willemite var. Troostite
Locality:Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey
Description:Doubly-terminated brown troostite crystal, the Mn-rich variety of the mineral species willemite, in white calcite matrix. The troostite crystal fluoresces weakly under UV illumination and has a matte luster, the calcite fluoresces orange. Ex. Chas. W. Velte Jr. (1914-1987) collection #42
Overall Size:4x3.5x2.5 cm
Crystals:30 mm
Status: Sold - Posted here for reference only
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