Chalcedony and Steatite Physical Properties

Chalcedony

Steatite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.20-2.80

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

Not Available

1.6 Cleavage

Absent

Not Available

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

SiO₂

Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

Chalcedony and Steatite Chemical Formula

While comparing Chalcedony and Steatite 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 Chalcedony and Steatite chemical formula.

Chemical formula of Chalcedony- SiO₂
Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

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Chalcedony and Steatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Steatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Steatite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.20-2.80 whereas that of Steatite is 2.20-2.80.