Agrellite and Tanzanite Physical Properties

Agrellite

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

2.883.35

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

perfect [110]

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

NaCa2Si4O10F

Ca₂Al₃(SiO₄)₃(OH)

Agrellite and Tanzanite Chemical Formula

While comparing Agrellite 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 Agrellite and Tanzanite chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Agrellite and Tanzanite Specific Gravity

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