Gypsum and Andradite Physical Properties

Gypsum

Andradite

Add ⊕

1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.403.70-4.10

1 7.18

1.5 Fracture

Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Perfect on {010}, distinct on {100}

none

1.7 Mohs Hardness

26.5-7

2 10

1.8 Chemical Composition

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Gypsum and Andradite Chemical Formula

While comparing Gypsum and Andradite 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 Gypsum and Andradite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Compare Colorless Gems

Gypsum Vs Hyalite

Gypsum Vs Hurlbutite

Gypsum Vs Hibschite

Gypsum and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Andradite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.70-4.10 whereas that of Andradite is 3.70-4.10.