Afghanite and Tugtupite Physical Properties

Afghanite

Tugtupite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.30-2.60

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {10 1 0}

{111} Imperfect

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Tugtupite Chemical Formula

While comparing Afghanite and Tugtupite 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 Afghanite and Tugtupite chemical formula.

Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Tugtupite- Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Afghanite and Tugtupite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Tugtupite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Tugtupite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.30-2.60 whereas that of Tugtupite is 2.30-2.60.