Augite and Montebrasite Physical Properties

Augite

Montebrasite

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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

3.19-3.562.98-3.10

1 7.18

1.5 Fracture

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

1.6 Cleavage

{110} Perfect, {010} Indistinct

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

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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

Augite and Montebrasite Chemical Formula

While comparing Augite 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 Augite and Montebrasite chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Augite and Montebrasite Specific Gravity

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