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Chapmanite
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Chapmanite
Synonyms: |
Antimon-Hypochlorite, Hoeferite, Höferite |
Classification: |
Silicates, Phyllosilicates |
Chemical formula: |
Fe3+2Sb3+(SiO4)2(OH) |
Crystal system: |
Monoclinic |
Density (g/cm3): |
3.69 - 3.75 measured, 4.29 calculated
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Cleavage: |
None |
Fracture: |
Irregular / uneven, conchoidal |
Hardness (Mohs): |
2.5 |
Colour: |
Olive green to deep yellow |
Lustre: |
Dull, sub-vitreous, adamantine |
Streak: |
Yellowish green |
Transparency: |
Transparent |
Type locality: |
Keeley-Frontier Mine (Canadian Keeley; Frontier Mine; Keeley Mine), South Lorrain Township, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada |
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