Tanzanite and Ludlamite Physical Properties

Tanzanite

Ludlamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.353.1-3.2

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {010}, imperfect {100}

Vitreous, pearly on cleavage

1.7 Mohs Hardness

6.5-73-4

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Tanzanite and Ludlamite Chemical Formula

While comparing Tanzanite and Ludlamite 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 Ludlamite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Tanzanite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.