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Siderite
Siderite

Charlesite
Charlesite



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Siderite
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Charlesite

Siderite and Charlesite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.83-3.891.79
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Irregular/uneven

Cleavage

Perfect on {01 1 1}
Perfect on {10bar10}

Mohs Hardness

3.5-4.52.5
2 10
👆🏻

Chemical Composition

Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Siderite and Charlesite Chemical Formula

While comparing Siderite and Charlesite 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 Siderite and Charlesite chemical formula.

  • Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Siderite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 1.79 whereas that of Charlesite is 1.79.