Apatite and Actinolite Physical Properties

Apatite

Actinolite

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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

3.16-3.233.00

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery

1.6 Cleavage

[0001] indistinct, [1010] indistinct

perfect along {110}.

1.7 Mohs Hardness

55-6

2 10

1.8 Chemical Composition

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

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

Apatite and Actinolite Chemical Formula

While comparing Apatite and Actinolite 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 Apatite and Actinolite chemical formula.

Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Apatite and Actinolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Actinolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Actinolite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.00 whereas that of Actinolite is 3.00.