Anorthoclase and Grandidierite Physical Properties

Anorthoclase

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

2.56-2.622.85-3.00

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

From the Greek for oblique and fracture, descriptive of the cleavage

Perfect

1.7 Mohs Hardness

6-6.57.5

2 10

1.8 Chemical Composition

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Anorthoclase and Grandidierite Chemical Formula

While comparing Anorthoclase 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 Anorthoclase and Grandidierite chemical formula.

Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Colorless Gems

Anorthoclase Vs Black Opal

Anorthoclase Vs Beryl

Anorthoclase Vs Beryllonite

Anorthoclase and Grandidierite Specific Gravity

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