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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
- 3
- WebMineral
- View Ganomalite
- Mindat
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Ganomalite from Jakobsberg mine, Filipstad, Värmland, Sweden

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