Orthoclase and Obsidian Physical Properties

Orthoclase

Obsidian

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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

2.54-2.612.35-2.60

1 7.18

1.5 Fracture

Gems, Uneven

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

65-5.5

2 10

1.8 Chemical Composition

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

Not Available

Orthoclase and Obsidian Chemical Formula

While comparing Orthoclase and Obsidian 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 Obsidian chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Orthoclase and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Orthoclase and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.