Orthoclase and Labradorite Physical Properties

Orthoclase

Labradorite

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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

2.54-2.612.69-2.72

1 7.18

1.5 Fracture

Gems, Uneven

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Na,Ca)_1-2Si_3-2O₈

Orthoclase and Labradorite Chemical Formula

While comparing Orthoclase and Labradorite 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 Orthoclase and Labradorite chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

Compare Colorless Gems

Orthoclase Vs Phosphophyllite

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phenakite

Orthoclase and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Orthoclase and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.