mineral
Fluorescent Calcite
Calcite (CaCO3)
AI-generated identification · may be incorrectHardness: 3, Color: typically white or colorless under normal light, fluoresces red or pink under UV light, Luster: vitreous to pearly, Crystal structure: trigonal, Cleavage: perfect rhombohedral
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Physical properties
Hardness: 3, Color: typically white or colorless under normal light, fluoresces red or pink under UV light, Luster: vitreous to pearly, Crystal structure: trigonal, Cleavage: perfect rhombohedral
Formation & geological history
Forms in a wide variety of sedimentary, metamorphic, and igneous environments. Fluorescence is typically caused by trace impurities (activators) such as manganese or lead.
Uses & applications
Collected for its fluorescent properties. Calcite in general is used in construction, agriculture, and industry.
Geological facts
Calcite is one of the most common fluorescent minerals. The red fluorescence seen here under UV light is characteristic of calcite from certain localities, notably Franklin and Sterling Hill, New Jersey.
Field identification & locations
Identified by its distinctive red fluorescence under shortwave UV light. Common locations include Franklin, NJ and various limestone deposits worldwide. Test for effervescence with dilute acid.
