Orthoclase and Sunstone Physical Properties

Orthoclase

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

2.54-2.612.62-2.65

1 7.18

1.5 Fracture

Gems, Uneven

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

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

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

Orthoclase and Sunstone Chemical Formula

While comparing Orthoclase 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 Orthoclase and Sunstone chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Compare Colorless Gems

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phosphophyllite

Orthoclase Vs Phenakite

Orthoclase and Sunstone Specific Gravity

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