Petalite and Cinnabar Physical Properties

Petalite

Cinnabar

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Slightly sectile

1.2 Solubility

insoluble

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

2.402

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {001}, poor on {201} with 38.5° angle between the two

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

6-6.52-2.5

2 10

1.8 Chemical Composition

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Petalite and Cinnabar Chemical Formula

While comparing Petalite 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 Petalite and Cinnabar chemical formula.

Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems Found In Australia

Petalite Vs Scheelite

Petalite Vs Sapphire

Petalite Vs Scolecite

Petalite and Cinnabar Specific Gravity

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