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Siderite
Siderite

Topaz
Topaz



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Siderite
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Topaz

Siderite and Topaz Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.83-3.893.49-3.57
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
Perfect on {01 1 1}
[001] Perfect
1.7 Mohs Hardness
3.5-4.58
Amber
2 10
1.8 Chemical Composition
Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al2SiO4(F,OH)2

Siderite and Topaz Chemical Formula

While comparing Siderite and Topaz 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 Topaz chemical formula.

  • Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Topaz- Al2SiO4(F,OH)2

Siderite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.