Austinite and Cinnabar Physical Properties

Austinite

Cinnabar

Add ⊕

Physical Properties

Tenacity

Brittle

Slightly sectile

Solubility

Easily soluble in cold dilute HCl

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

Durability

Specific Gravity

4.122

1 7.18

👆🏻

Fracture

Uneven

Cleavage

Good in two directions parallel to the prism faces {110}

Prismatic {10 1 0}, perfect

Mohs Hardness

4-4.52-2.5

2 10

👆🏻

Chemical Composition

CaZn(AsO4)(OH)

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

Austinite and Cinnabar Chemical Formula

While comparing Austinite 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 Austinite and Cinnabar chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Gaspeite

Austinite Vs Gyrolite

Austinite and Cinnabar Specific Gravity

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