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Mineralpedia Details for Ganomalite

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Ganomalite

Ganomalite

Named for the Greek word ganoma, meaning a “tinker” or “glaze,” in reference to the minerals lustrous, glazed appearance. Occurs in Sweden, the United States, and China only. Found in skarn assemblages at the locality in Jakobsberg, Sweden and in manganese ores at Franklin in New Jersey, USA. Associated minerals include tephroite, lead, jacobsite, calcite, phlogopite, macedonite, clinohedrite, willemite, andradite, and franklinite.

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

Formula
Pb3Ca2(SiO4)(Si2O7
Crystal System
Trigonal 
Crystal Habit
Prismatic, Massive - Granular 
Cleavage
Good, None, None 
Luster
Vitreous - Adamantine 
Color
colorless, gray, white 
Streak
white 
Class
Trigonal - Pyramidal 
Hardness
WebMineral
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Mindat
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Ganomalite from Jakobsberg mine, Filipstad, Värmland, Sweden

Ganomalite
            from Jakobsberg mine, Filipstad, Värmland, Sweden

White crystalline masses of Ganomalite to 6mm with reddish brown Phlogopite.

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