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Kutnohorite
Kutnohorite

Siderite
Siderite



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Kutnohorite
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Siderite

Kutnohorite and Siderite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

3.123.83-3.89
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Uneven, Conchoidal

Cleavage

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

Mohs Hardness

3-43.5-4.5
2 10
👆🏻

Chemical Composition

Ca(Mn,Mg,Fe)(CO3)2
Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kutnohorite and Siderite Chemical Formula

While comparing Kutnohorite and Siderite 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 Kutnohorite and Siderite chemical formula.

  • Chemical formula of Kutnohorite- Ca(Mn,Mg,Fe)(CO3)2
  • Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Kutnohorite and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kutnohorite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kutnohorite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Kutnohorite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.