Selenite and Montebrasite Physical Properties

Selenite

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

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

25.5-6

2 10

1.8 Chemical Composition

Not Available

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

Selenite and Montebrasite Chemical Formula

While comparing Selenite 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 Selenite 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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Selenite and Montebrasite Specific Gravity

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