Onyx and Malachite Physical Properties

Onyx

Malachite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.703.25-4.10

1 7.18

1.5 Fracture

Not Available

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.6 Cleavage

Indiscernible

Perfect on { 2 01} fair on {010}

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

SiO₂

Cu₂CO₃(OH)₂

Onyx and Malachite Chemical Formula

While comparing Onyx and Malachite 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 Onyx and Malachite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Malachite- Cu₂CO₃(OH)₂

Compare Gems for Capricorn » More

Onyx Vs Crystal Quartz

Onyx Vs Hawks Eye

Onyx Vs Quartz Smoky

» More

More Compare Gems for Capricorn

Onyx and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Malachite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.25-4.10 whereas that of Malachite is 3.25-4.10.