Spessartine and Tanzanite Physical Properties

Spessartine

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

4.12-4.18

3.35

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{???} Distinct

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

7-7.5

6.5-7

1.8 Chemical Composition

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Ca₂Al₃(SiO₄)₃(OH)

Spessartine and Tanzanite Chemical Formula

While comparing Spessartine and Tanzanite 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 Spessartine and Tanzanite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Spessartine and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 3.35 whereas that of Tanzanite is 3.35.