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Holmquistite
Holmquistite

Amethyst
Amethyst



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Holmquistite
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Amethyst

Holmquistite and Amethyst Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble in common solvents
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.95-3.132.65
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
{210} Perfect
Indiscernible
1.7 Mohs Hardness
5-67
Amber
2 10
1.8 Chemical Composition
Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
SiO2

Holmquistite and Amethyst Chemical Formula

While comparing Holmquistite and Amethyst physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Holmquistite and Amethyst chemical formula.

  • Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Amethyst- SiO2

Holmquistite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 2.65 whereas that of Amethyst is 2.65.