Star Sapphire and Esperite Physical Properties

Star Sapphire

Esperite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.054.28-4.42

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

1.6 Cleavage

Not Available

Distinct on [010] and [100] poor on [101]

1.7 Mohs Hardness

Not Available5-5.5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Star Sapphire and Esperite Chemical Formula

While comparing Star Sapphire and Esperite 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 Star Sapphire and Esperite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

Star Sapphire Vs Verdite

Star Sapphire Vs Tortoiseshell

Star Sapphire Vs Tourmaline

Star Sapphire and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Esperite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 4.28-4.42 whereas that of Esperite is 4.28-4.42.