Iddingsite and Forsterite Physical Properties

Iddingsite

Forsterite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.5-2.83.23-3.26

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{???} Perfect

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

36.5-7

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Iddingsite and Forsterite Chemical Formula

While comparing Iddingsite and Forsterite 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 Forsterite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Iddingsite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.