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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

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

 

 

 
 
TOPGEO Mineralienhandel GmbH
Dr. Petr Zajicek
Commercial register:
HRB 671194 Amtsgericht Ulm
VAT-Id: DE147815490
Gersbach 10
74589 Satteldorf
Germany
Telephone: +49 7950 1345
Telefax: +49 7950 8483
eMail: topgeo.gmbh@t-online.de | mail@topgeo.com
  

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