Tanzanite and Prehnite Physical Properties

Tanzanite

Prehnite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

2.80-2.95

1.5 Fracture

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

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

Perfect {010}, imperfect {100}

Distinct on [001]

1.7 Mohs Hardness

6.5-7

6-6.5

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Ca₂Al₂Si₃O₁₂(OH)

Tanzanite and Prehnite Chemical Formula

While comparing Tanzanite and Prehnite 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 Tanzanite and Prehnite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

Compare Semi Precious Gemstones

Tanzanite Vs Amethyst

Tanzanite Vs Alexandrite

Tanzanite Vs Beryl

Tanzanite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.

Semi Precious

Tourmaline

Turquoise

Peridot

Lehsunia

Alexandrite

Amethyst