Iddingsite and Andesine Physical Properties

Iddingsite

Andesine

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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

2.5-2.82.65-2.69

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{???} Perfect

Perfect on {001}, good on {010}

1.7 Mohs Hardness

36-6.5

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

(Na,Ca)Al_1-2Si_3-2O₈

Iddingsite and Andesine Chemical Formula

While comparing Iddingsite and Andesine 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 Iddingsite and Andesine chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈

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Iddingsite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.