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Opal

Order items by
Opal
Herĺany, Košice Region, Slovakia

Item-No.: LM66
Price: 59.00 EUR 
Opal
Borovina, Třebíč, Vsočina Region, Moravia, Czech Republic

Item-No.: LM71
Price: 16.00 EUR 
Opal
Nová Ves, Oslavany, South Moravia Region, Moravia, Czech Republic

Item-No.: LM85
Price: 26.00 EUR 
Opal
Řípov, Třebíč, Vysočina Region, Moravia, Czech Republic

Item-No.: LM87
Price: 28.00 EUR 
Opal
Řípov, Třebíč, Vysočina Region, Moravia, Czech Republic

Item-No.: LM89
Price: 20.00 EUR 
Opal
Řípov, Třebíč, Vysočina Region, Moravia, Czech Republic

Item-No.: LM91
Price: 22.00 EUR 
Opal
Nová Ves, Oslavany, South Moravia Region, Moravia, Czech Republic

Item-No.: LM105
Price: 26.00 EUR 
Opal
Bohouškovice, Křemže, Český Krumlov, Bohemia, Czech Republic

Item-No.: LM124
Price: 13.00 EUR 
Opalized Belemnite
Coober Pedy, Central North, South Australia, Australia

Item-No.: MIN5650
Price: 1190.00 EUR 

Synonyms:  Gel-Cristobalite, Gel-Pristobalite, Hemiopal, Invisible Quartz, Iridot, Lechosos, Neslite, Nevada Opal, Paederos, Potch, Rumanite, Semiopal, Vidrite, Virgin Valley Opal, White Cliffs Opal
Classification:  Oxides, Hydroxides
Chemical formula:  SiO2·nH2O
Crystal system:  Amorphose
Density (g/cm3):  1,9 - 2,3 measured
Tenacity:  Brittle
Cleavage:  None observed
Fracture:  Irregular/Uneven, Splintery, Conchoidal
Hardness (Mohs):  5,5 - 6,5
Colour:  Colourless, white, yellow, red, orange, green, brown, black, blue
Lustre:  Vitreous, Waxy, Greasy, Dull
Streak:  White
Application:  Gemstone

 

 

 
 
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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