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Phosphosiderite
Phosphosiderite

Alunite
Alunite



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Phosphosiderite
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Alunite

Phosphosiderite and Alunite 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)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Phosphosiderite and Alunite Chemical Formula

While comparing Phosphosiderite and Alunite 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 Alunite chemical formula.

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Phosphosiderite and Alunite Specific Gravity

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