Augite and Siderite Physical Properties

Augite

Siderite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.563.83-3.89

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

{110} Perfect, {010} Indistinct

Perfect on {01 1 1}

1.7 Mohs Hardness

5.5-63.5-4.5

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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

Augite and Siderite Chemical Formula

While comparing Augite 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 Augite and Siderite chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Augite and Siderite Specific Gravity

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