Phosphosiderite and Sylvite Physical Properties

Phosphosiderite

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.761.993

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven

Uneven, Brittle

1.6 Cleavage

{010} Perfect, {001} Distinct

Perfect on [100], [010], [001]

1.7 Mohs Hardness

3.5-42.5

2 10

1.8 Chemical Composition

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

Not Available

Phosphosiderite and Sylvite Chemical Formula

While comparing Phosphosiderite and Sylvite 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 Sylvite chemical formula.

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

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Phosphosiderite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 1.993 whereas that of Sylvite is 1.993.