Montebrasite and Sellaite Physical Properties

Montebrasite

Sellaite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.98-3.10

Uneven, Conchoidal

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

5.5-6

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

Brittle

3.14-3.16

Conchoidal

Perfect on {010} and {110}

5-5.5

MgF 2Ulrich Henn and Claudio C.

Montebrasite and Sellaite Chemical Formula

While comparing Montebrasite and Sellaite 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 Sellaite chemical formula.

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Montebrasite and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite Vs Sellaite during the identification of gemstone. Specific gravity of Montebrasite is whereas that of Sellaite is .