Shigaite and Tanzanite Physical Properties

Shigaite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.323.35

1 7.18

1.5 Fracture

Flexible Flexible fragments.

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

1.6 Cleavage

Perfect on {0001}

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

26.5-7

2 10

1.8 Chemical Composition

Not Available

Ca₂Al₃(SiO₄)₃(OH)

Shigaite and Tanzanite Chemical Formula

While comparing Shigaite 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 Shigaite and Tanzanite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Shigaite and Tanzanite Specific Gravity

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