Calcite and Fire Agate Physical Properties

Calcite

Fire Agate

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.732.60-2.64

1 7.18

1.5 Fracture

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

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55

Absent

1.7 Mohs Hardness

36.5-7

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

SiO 2Arthur Thomas , Gemstones (2009)

Calcite and Fire Agate Chemical Formula

While comparing Calcite and Fire Agate 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 Calcite and Fire Agate chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Fire Agate- SiO 2Arthur Thomas , Gemstones (2009)

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Calcite and Fire Agate Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Fire Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Fire Agate Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.60-2.64 whereas that of Fire Agate is 2.60-2.64.