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Mineralpedia Details for Chondrodite

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Chondrodite

Chondrodite

Named for its common occurrence as isolated grains through the Greek word for “grain,” after the Greek word chondrou, meaning “cartilage,” which itself appears microscopically as isolated grains in matrix. Chondrodite is an uncommon mineral that occurs in contact metamorphic zones in limestones and dolostones, and in carbonatites. Some localities for Chondrodite can be found in Finland, Sweden, Italy, France, India, the United States, Canada, South Africa, and a few others.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/chondrodite.pdf

Formula
Mg5(SiO4)2F2 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Massive - Granular 
Cleavage
Good, None, None 
Luster
Vitreous - Greasy 
Color
yellow, orange, brownish white, reddish white, greenish white 
Streak
gray 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
6-6.5 
WebMineral
View Chondrodite 
Mindat
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Chondrodite from Tilly Foster mine, Putnam Co., New York, United States

Chondrodite
            from Tilly Foster mine, Putnam Co., New York, United States

Deep red well-formed 7mm crystal in matrix associated with Magnetite. Excellent specimen from the classic locality. 

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Chondrodite from Crestmore, Riverside Co., California, United States

Chondrodite
            from Crestmore, Riverside Co., California, United States

Orange rounded crystal to 7mm with some smaller crystals in marble or calcite matrix with minor Spinel. 

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