Rhodolite and Montebrasite Physical Properties

Rhodolite

Montebrasite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.842.98-3.10

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

none, may show indistinct parting

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

Mohs Hardness

7-7.55.5-6

2 10

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Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Montebrasite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Montebrasite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Rhodolite and Montebrasite Specific Gravity

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