Brookite

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Brookite
Magnet Cove, Hot Spring Co., Arkansas, USA

Item-No.: MINS4674
Price: 145.00 EUR 
Brookite
Magnet Cove, Hot Spring Co., Arkansas, USA

Item-No.: MINS4675
Price: 130.00 EUR 
Brookite
Magnet Cove, Hot Spring Co., Arkansas, USA

Item-No.: MINS4676
Price: 145.00 EUR 

Synonyms: Jurinite, Pyromelane
Classification: Oxides
Chemical formula: TiO2
Crystal system: Orthorhombic
Density (g/cm3): 4.08 - 4.18 measured, 4.133 calculated
Tenacity: Brittle
Cleavage: Poor / indistinct on {120}, in traces on {001}
Fracture: Irregular / uneven, sub-conchoidal
Hardness (Mohs): 5.5 - 6
Colour: Brown, yellowish brown, reddish brown; dark brown to iron-black
Lustre: Adamantine, sub-adamantine, vitreous, sub-vitreous, sub-metallic
Streak: White to greyish white or yellowish white
Fluorescence: Not fluorescent in ultraviolet
Transparency: Transparent, translucent, opaque
Type locality: Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd, Wales, UK

 

 

 
 
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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