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SC339 - Calcite on Quartz


Locality: San Antonio Mine (San Antonio el Grande Mine), East Camp, Santa Eulalia Mining District, Aquiles Serdán Municipality, Chihuahua, Mexico (MINDAT)
Size: 9 x 6 x 4 cm - Cabinet (6-10 cm)
Weight: 250 g
minID: 92A-RX8

Calcite in a bed of quartz. The calcite fluoresces a nice red under shortwave UV light. Under longwave UV light, the red fluorescence of the calcite is weaker, but some dark inclusions in the calcite fluoresce orange. The inclusions could be sphalerite.

Photo in normal light.
Fluorescence under shortwave UV light (254nm Hg light).
Fluorescence under longwave UV light (365nm LED).
Last update: 12 January 2021