Bastnasite and Tanzanite Physical Properties

Bastnasite

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

4.95-5.03.35

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

4-56.5-7

2 10

1.8 Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₂Al₃(SiO₄)₃(OH)

Bastnasite and Tanzanite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Tanzanite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Bastnasite and Tanzanite Specific Gravity

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