Friedelite and Spinel Physical Properties

Friedelite

Spinel

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.06-3.19

Uneven

{010} Perfect

4-5

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

3.64-3.66

Conchoidal, Uneven

None, but may exhibit slight parting

MgAl₂O₄

Friedelite and Spinel Chemical Formula

While comparing Friedelite 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 Friedelite and Spinel chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Spinel- MgAl₂O₄

Compare Red Gemstones

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Friedelite Vs Nepheline

Friedelite and Spinel Specific Gravity

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