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Phosphosiderite
Phosphosiderite

Sillimanite
Sillimanite



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Phosphosiderite
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Sillimanite

Phosphosiderite and Sillimanite Physical Properties

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)
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Phosphosiderite and Sillimanite Chemical Formula

While comparing Phosphosiderite and Sillimanite 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 Sillimanite chemical formula.

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Phosphosiderite and Sillimanite Specific Gravity

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