Siderite and Sapphirine Physical Properties

Siderite

Sapphirine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.83-3.893.40-3.58

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Perfect on {01 1 1}

{010} Perfect

1.7 Mohs Hardness

3.5-4.57.5

2 10

1.8 Chemical Composition

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Siderite and Sapphirine Chemical Formula

While comparing Siderite and Sapphirine 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 Sapphirine chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Siderite and Sapphirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.