Scapolite and Cinnabar Physical Properties

Scapolite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.742

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

{100} Distinct, {110} Distinct

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

5.5-62-2.5

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

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Scapolite and Cinnabar Chemical Formula

While comparing Scapolite and Cinnabar 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 Cinnabar 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 Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Scapolite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scapolite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 2 whereas that of Cinnabar is 2.