Montebrasite and Sunstone Physical Properties

Montebrasite

Sunstone

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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

2.98-3.102.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

5.5-66

2 10

1.8 Chemical Composition

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

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Montebrasite and Sunstone Chemical Formula

While comparing Montebrasite and Sunstone 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 Sunstone 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 Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Montebrasite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.