Sunstone and Grandidierite Physical Properties

Sunstone

Grandidierite

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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

2.62-2.652.85-3.00

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

001

Perfect

1.7 Mohs Hardness

67.5

2 10

1.8 Chemical Composition

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

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Sunstone and Grandidierite Chemical Formula

While comparing Sunstone and Grandidierite 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 Sunstone and Grandidierite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Sunstone and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.