Iddingsite and Brookite Physical Properties

Iddingsite

Brookite

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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

2.5-2.83.87-4.14

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{???} Perfect

Poor on {120}, in traces on {001}

1.7 Mohs Hardness

35.5-6

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Iddingsite and Brookite Chemical Formula

While comparing Iddingsite and Brookite 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 Brookite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Iddingsite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.