Phosphosiderite and Star Sapphire Physical Properties

Phosphosiderite

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.763.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{010} Perfect, {001} Distinct

Not Available

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Phosphosiderite and Star Sapphire Chemical Formula

While comparing Phosphosiderite and Star Sapphire 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 Star Sapphire chemical formula.

Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Phosphosiderite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.