Fluorite (Calcium Floride)

From Ohio History Central
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Fluorite (1).jpg
Fluorite, Gibsonburg, Sandusky County, Ohio; N 5734

The name fluorite comes from the Latin word for flux, which refers to a substance that promotes flowing and combining of other materials, especially minerals and metals. And in fact the mineral fluorite is used as a flux in making steel and other metals that require the removal of impurities. Fluorite is a source of fluorine gas, which is used in the production of uranium. Some forms of fluorite crystals are used extensively in the study of light.