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Montebrasite
Montebrasite

Helenite
Helenite



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Montebrasite
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Helenite

Montebrasite and Helenite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.98-3.10-9999
1 7.18
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Fracture

Uneven, Conchoidal
-

Cleavage

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

Mohs Hardness

5.5-6-9999
2 10
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Chemical Composition

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
SiO2

Montebrasite and Helenite Chemical Formula

While comparing Montebrasite and Helenite 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 Helenite chemical formula.

  • Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Helenite- SiO2

Montebrasite and Helenite Specific Gravity

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