Topaz

Topaz


Schneckenstein, Erzgebirge Mts., Saxony, Germany

Item-No.: MINS543
Price: 30.00 EUR 

Topaz


Schneckenstein, Erzgebirge Mts., Saxony, Germany

Item-No.: MINS612
Price: 33.00 EUR 

Topaz


Volodar Volinsky, Ukraine

Item-No.: MINS158
Price: 29.00 EUR 

Topaz


Volodar Volinsky, Ukraine

Item-No.: MINS161
Price: 24.00 EUR 

Topaz Cherry


Thomas Ranch, Utah, USA

Item-No.: 0300031
Price: 78.00 EUR 

Topaz Var. Pyknite


Altenberg, Erzgebirge Mts., Saxony, Germany

Item-No.: MINS1025
Price: 62.00 EUR 

Topaz Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: MINS830
Price: 26.00 EUR 

Topaz Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: MINS741
Price: 43.00 EUR 

Topaz Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: MINS1010
Price: 12.00 EUR 

Topaz Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: MIN0145
Price: 32.00 EUR 

Topaz Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: MIN0146
Price: 67.00 EUR 

Topaz, Var. Pyknite


Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic

Item-No.: 0300035
Price: 45.00 EUR 

Synonyms:  Chrysolithos, Physalite, Pyrophysalite
Variety of Topaz:  Piknite
Classification:  Silicates, Nesosilicates
Chemical formula:  Al2(SiO4)(F,OH)2
Crystal system:  Orthorhombic
Density (g/cm3):  3,4 - 3,6 measured
Tenacity:  Brittle
Cleavage:  Perfect on (001)
Fracture:  Irregular/Uneven, Sub-Conchoidal
Hardness (Mohs):  8
Colour:  Colourless, white, pale blue, light green, yellow, yellowish brown, or red
Lustre:  Vitreous
Streak:  White
Application:  Gemstone and abrasive