Thulite and Sphalerite Physical Properties

Thulite

Sphalerite

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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

3.13.95-4.10

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven

1.6 Cleavage

Perfect {010} imperfect {100}

{110} Perfect, {110} Perfect, {110} Perfect

1.7 Mohs Hardness

6-73.5-4

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Thulite and Sphalerite Chemical Formula

While comparing Thulite and Sphalerite 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 Sphalerite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Thulite and Sphalerite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.