Sellaite and Stichtite Physical Properties

Sellaite

Stichtite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-3.16

2.11-2.20

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

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

1.6 Cleavage

Perfect on {010} and {110}

Perfect on {0001}

1.7 Mohs Hardness

5-5.5

Not Available

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

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

Sellaite and Stichtite Chemical Formula

While comparing Sellaite 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 Sellaite and Stichtite chemical formula.

Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
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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Sellaite and Stichtite Specific Gravity

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