Thaumasite and Afghanite Physical Properties

Thaumasite

Afghanite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.91

2.55-2.65

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Indistinct

Perfect {10 1 0}

1.7 Mohs Hardness

3.5

5.5-6

1.8 Chemical Composition

Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

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

Thaumasite and Afghanite Chemical Formula

While comparing Thaumasite 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 Thaumasite and Afghanite chemical formula.

Chemical formula of Thaumasite- Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.
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 Gems Found In Africa

Thaumasite Vs Umbalite

Thaumasite Vs Tsavorite

Thaumasite Vs Transvaal Jade

Thaumasite and Afghanite Specific Gravity

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