Actinolite and Rock Crystal Physical Properties

Actinolite

Rock Crystal

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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

3.002.65

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery

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

1.6 Cleavage

perfect along {110}.

Not Available

1.7 Mohs Hardness

5-67

2 10

1.8 Chemical Composition

Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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

Actinolite and Rock Crystal Chemical Formula

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

Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

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Actinolite and Rock Crystal Specific Gravity

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