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Rock Crystal
Rock Crystal

Albite
Albite



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Rock Crystal
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Albite

Rock Crystal and Albite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.652.60-2.65
1 7.18
👆🏻

Fracture

ConchoidalWalter Schumann
Uneven, Conchoidal

Cleavage

None
Perfect on {001}, very good on {010}, imperfect on {110}

Mohs Hardness

76-6.5
2 10
👆🏻

Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Rock Crystal and Albite Chemical Formula

While comparing Rock Crystal and Albite 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 Rock Crystal and Albite chemical formula.

  • Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Rock Crystal and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Albite Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 2.60-2.65 whereas that of Albite is 2.60-2.65.