Montebrasite and Ruby Physical Properties

Montebrasite

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

2.98-3.103.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

5.5-69

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Montebrasite and Ruby Chemical Formula

While comparing Montebrasite 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 Montebrasite and Ruby chemical formula.

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

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Montebrasite and Ruby Specific Gravity

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