Pyrope Almandine and Chalcedony Physical Properties

Pyrope Almandine

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-4.20

2.55-2.70

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

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

1.6 Cleavage

Not Available

Absent

1.7 Mohs Hardness

7-7.5

6.5-7

1.8 Chemical Composition

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

SiO₂

Pyrope Almandine and Chalcedony Chemical Formula

While comparing Pyrope Almandine and Chalcedony 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 Pyrope Almandine and Chalcedony chemical formula.

Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
Chemical formula of Chalcedony- SiO₂

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Pyrope Almandine and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope Almandine and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope Almandine and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Pyrope Almandine is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.