Holmquistite and Ruby Physical Properties

Holmquistite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.133.97-4.05

1 7.18

1.5 Fracture

Not Available

Conchoidal

1.6 Cleavage

{210} Perfect

No true cleavage

1.7 Mohs Hardness

5-69

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Holmquistite and Ruby Chemical Formula

While comparing Holmquistite and Ruby 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 Ruby 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 Ruby- Al ₂ O ₃

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Holmquistite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.