Carletonite and Obsidian Physical Properties

Carletonite

Obsidian

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.452.35-2.60

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

Perfect on {001}, good on {110}

Not Available

1.7 Mohs Hardness

4-4.55-5.5

2 10

1.8 Chemical Composition

KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Carletonite and Obsidian Chemical Formula

While comparing Carletonite 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 Carletonite and Obsidian chemical formula.

Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Carletonite and Obsidian Specific Gravity

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