Zoisite and Gahnospinel Physical Properties

Zoisite

Gahnospinel

Add ⊕

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.20-3.503.65-4.55

1 7.18

👆🏻

Fracture

Uneven, Conchoidal, Even

Conchoidal

Cleavage

Perfect {010} imperfect {100}

None, but may exhibit slight parting

Mohs Hardness

6-77.5-8

2 10

👆🏻

Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Zoisite and Gahnospinel Chemical Formula

While comparing Zoisite and Gahnospinel 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 Zoisite and Gahnospinel chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Compare Brown Gemstones

Zoisite Vs Mottramite

Zoisite Vs Pyrrhotite

Zoisite Vs Vesuvianite

Zoisite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.