Vesuvianite and Afghanite Physical Properties

Vesuvianite

Afghanite

Add ⊕

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.32-3.432.55-2.65

1 7.18

👆🏻

Fracture

Conchoidal

Cleavage

Poor on {110} and {100} very poor on {001}

Perfect {10 1 0}

Mohs Hardness

6-75.5-6

2 10

👆🏻

Chemical Composition

Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Vesuvianite and Afghanite Chemical Formula

While comparing Vesuvianite and Afghanite 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 Vesuvianite and Afghanite chemical formula.

Chemical formula of Vesuvianite- Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Compare Brown Gemstones

Vesuvianite Vs Mottramite

Vesuvianite Vs Kutnohorite

Vesuvianite Vs Radiolarite

Vesuvianite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.