Sard and Spinel Physical Properties

Sard

Spinel

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.63

3.64-3.66

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

None, but may exhibit slight parting

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

MgAl₂O₄

Sard and Spinel Chemical Formula

While comparing Sard and Spinel 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 Sard and Spinel chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Spinel- MgAl₂O₄

Compare Blue Gemstones

Sard Vs Sillimanite

Sard Vs Spinel

Sard Vs Sodalite

Sard and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Spinel Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.64-3.66 whereas that of Spinel is 3.64-3.66.