Iddingsite and Gedrite Physical Properties

Iddingsite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.5-2.83.15-3.259

1 7.18

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Fracture

Cleavage

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Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

35.5-6

2 10

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Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Iddingsite and Gedrite Chemical Formula

While comparing Iddingsite and Gedrite 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 Gedrite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

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Iddingsite and Gedrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.