Rock Crystal and Diaspore Physical Properties

Rock Crystal

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.30-3.40

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Not Available

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

76.5-7

2 10

1.8 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Rock Crystal and Diaspore Chemical Formula

While comparing Rock Crystal and Diaspore 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 Diaspore chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Blue Gemstones

Rock Crystal Vs Serendibite

Rock Crystal Vs Scorzalite

Rock Crystal Vs Sardonyx

Rock Crystal and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.