Scapolite and Carnelian Physical Properties

Scapolite

Carnelian

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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

2.58-2.742.58-2.64

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery

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

1.6 Cleavage

{100} Distinct, {110} Distinct

Absent

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

SiO₂

Scapolite and Carnelian Chemical Formula

While comparing Scapolite and Carnelian 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 Scapolite and Carnelian chemical formula.

Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Carnelian- SiO₂

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Scapolite and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scapolite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.