Ruby and Holmquistite Physical Properties

Ruby

Holmquistite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.95-3.13

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

No true cleavage

{210} Perfect

1.7 Mohs Hardness

95-6

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Holmquistite Chemical Formula

While comparing Ruby and Holmquistite 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 Ruby and Holmquistite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
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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Ruby and Holmquistite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Holmquistite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Holmquistite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.95-3.13 whereas that of Holmquistite is 2.95-3.13.