AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Calcite on Sphalerite

Calcite on Sphalerite from West Cumberland Iron Mining District, Cumbria, England

Photo below under shortwave ultraviolet illumination:

DESCRIPTION:	No. 19436
Mineral:	Calcite on Sphalerite
Locality:	West Cumberland Iron Mining District, Cumbria, England
Description:	Pristine specimen of lustrous, black sphalerite crystals up to 6 mm with overgrowth of translucent, colorless calcite crystals up to 14 mm. The calcite crystals are flattened rhombic form and the dark sphalerite beneath can be seen through the calcite. Ex. Westtown School (West Chester, Pa.) Collection no. 6568, donated by Walter M. and Alfred B. Jones (1843-?).
Overall Size:	6x5x4 cm
Crystals:	3-14 mm
Archived:	For reference only

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