Thulite and Stichtite Physical Properties

Thulite

Stichtite

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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

3.12.11-2.20

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Perfect {010} imperfect {100}

Perfect on {0001}

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Thulite and Stichtite Chemical Formula

While comparing Thulite and Stichtite 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 Thulite and Stichtite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Thulite and Stichtite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Stichtite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.11-2.20 whereas that of Stichtite is 2.11-2.20.