Ferro-tschermakite
A variety of Tschermakite Root Name Group
What is Ferro-tschermakite?
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North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Medium green to dark green to green-black to black, also brownish-green.
- Hardness (Mohs)
- 5 - 6
- Streak
- Pale grey-green
Chemical Properties
- Chemical Formula
- ☐{Ca2}{Fe2+3Al2}(Al2Si6O22)(OH)2 Ferro-tschermakite is defined as a tschermakite group member with the following dominant elements: C position: Fe as the dominant divalent cation and Al as the dominant trivalent cation. W position: (OH) as the dominant anion
- Elements
- Al, Ca, Fe, H, O, Si
Also Known As
Ferro-tschermakiteFerro-tschermakitic-hornblende
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