Alabaster and Tanzanite Physical Properties

Alabaster

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

2.303.35

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

26.5-7

2 10

1.8 Chemical Composition

CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Ca₂Al₃(SiO₄)₃(OH)

Alabaster and Tanzanite Chemical Formula

While comparing Alabaster 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 Alabaster and Tanzanite chemical formula.

Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

Compare Brown Gemstones

Alabaster Vs Astrophyllite

Alabaster Vs Anthophyllite

Alabaster Vs Anhydrite

Alabaster and Tanzanite Specific Gravity

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