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 |