Wardite and Obsidian Physical Properties

Wardite

Obsidian

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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

2.812.35-2.60

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

{001} Perfect

Not Available

1.7 Mohs Hardness

4.5-55-5.5

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Not Available

Wardite and Obsidian Chemical Formula

While comparing Wardite and Obsidian 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 Wardite and Obsidian chemical formula.

Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Wardite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wardite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wardite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Wardite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.