Ruby and Montebrasite Physical Properties

Ruby

Montebrasite

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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

3.97-4.052.98-3.10

1 7.18

1.5 Fracture

Conchoidal

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

No true cleavage

{100} Perfect, {110} Good, {011} Distinct

1.7 Mohs Hardness

95.5-6

2 10

1.8 Chemical Composition

Al ₂ O ₃

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

Ruby and Montebrasite Chemical Formula

While comparing Ruby and Montebrasite 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 Montebrasite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Ruby and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.