Onyx and Kyanite Physical Properties

Onyx

Kyanite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.703.53-3.65

1 7.18

1.5 Fracture

Not Available

Splintery, Brittle, Metallic

1.6 Cleavage

Indiscernible

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

6.5-74-7

2 10

1.8 Chemical Composition

SiO₂

Not Available

Onyx and Kyanite Chemical Formula

While comparing Onyx and Kyanite 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 Kyanite chemical formula.

Chemical formula of Onyx- SiO₂

Compare Gems for Capricorn » More

Onyx Vs Hawks Eye

Onyx Vs Crystal Quartz

Onyx Vs Quartz Smoky

» More

More Compare Gems for Capricorn

Onyx and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.