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Siderite
Siderite

Magnesite
Magnesite



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Siderite
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Magnesite

Siderite and Magnesite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Effervesces in hot HCl

Durability

-
-

Specific Gravity

3.83-3.892.92-3.12
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

Perfect on {01 1 1}
[10 1 1] perfect

Mohs Hardness

3.5-4.53.5-4.5
2 10
👆🏻

Chemical Composition

Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Siderite and Magnesite Chemical Formula

While comparing Siderite and Magnesite 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 Magnesite chemical formula.

  • Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Magnesite- MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Siderite and Magnesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.