Phosphosiderite and Gypsum Physical Properties

Phosphosiderite

Gypsum

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.74-2.76

Uneven

{010} Perfect, {001} Distinct

3.5-4

Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Flexible

Soluble

2.20-2.40

Conchoidal, Splintery, Fibrous

Perfect on {010}, distinct on {100}

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

Phosphosiderite and Gypsum Chemical Formula

While comparing Phosphosiderite and Gypsum 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 Phosphosiderite and Gypsum chemical formula.

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Phosphosiderite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite Vs Gypsum during the identification of gemstone. Specific gravity of Phosphosiderite is whereas that of Gypsum is .