|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Sphalerite on Quartz
|Sphalerite on Quartz
|Alston Moor, West Cumberland Iron Mining District, Cumbria, England
|Lustrous transparent brown-black sphalerite crystals covering the front face gray-brown matrix with colorless quartz microcrystals. The sphalerite crystals are complex form, caused by Spinel-law twinning, with microscopic crystallization patterns. From a private collection donated to Manhattanville College ca. 1910.
|For reference only
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