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10.10.2011 13:32 |
Synonyms: alatyr, electron, amber, succinite, Gintaras, Dzintars,Burma
Class: organic matter.
Formula: Approximately C10H16O.
Hardness: 1.5-3.
Specific gravity: ... |
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10.10.2011 13:22 |
Class: Silicates.
Formula: ZrSiO4, zirconium silicate.
Hardness: 6.5-7.5.
Specific gravity: 4,55-4,67.
Color: different shades of brown.
Feature: white.
The ... |
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10.10.2011 13:14 |
Class: Silicates.
Formula: (Ca, Na, K) (Al, Fe, Mg, Mn) 3 (Al, Cr, Fe, V) 6 (OH) 4 (BO3) 3Si6O18,complex borosilicate of variable composition.
Hardness: 7-7.5.
Specific ... |
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10.10.2011 12:51 |
Synonyms: Bristol rock.
Class: Silicates.
Formula: Al2F2SiO4, fluorine-containing aluminum silicate.
Hardness: 8.
Specific gravity: 3,49-3,6.
Color: white, ... |
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10.10.2011 12:39 |
Synonyms: sapphire azure.
Class: Oxides and hydroxides.
Formula: Al2O3, aluminum oxide.
Hardness: 9.
Unit Weight: 4.
Color: blue and blue and white, pink, ... |
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10.10.2011 12:28 |
Synonyms: ruby, balangus.
Class: Oxides and hydroxides.
Formula: Al2O3, aluminum oxide.
Hardness: 9.
Unit Weight: 4.
Color: red.
Feature: white.
Related ... |
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10.10.2011 12:20 |
Class: Oxides and hydroxides.
Formula: SiO2 ♦ nH2O, hydrous silicon dioxide.
Hardness: 5.5-6.5.
Specific Gravity: 3.96.
Color: colorless, raznookrashenny.
Feature: ... |
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