Holmquistite and Obsidian Physical Properties

Holmquistite

Obsidian

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.132.35-2.60

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

{210} Perfect

Not Available

1.7 Mohs Hardness

5-65-5.5

2 10

1.8 Chemical Composition

Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Not Available

Holmquistite and Obsidian Chemical Formula

While comparing Holmquistite and Obsidian 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 Obsidian chemical formula.

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

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Holmquistite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.