Vishnevite and Montebrasite Physical Properties

Vishnevite

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

Not Available2.98-3.10

1 7.18

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

Not Available

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

Vishnevite and Montebrasite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Montebrasite chemical formula.

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

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Vishnevite and Montebrasite Specific Gravity

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