Iddingsite and Chalcedony Physical Properties

Iddingsite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.5-2.8

2.55-2.70

1.5 Fracture

Not Available

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

{???} Perfect

Absent

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

SiO₂

Iddingsite and Chalcedony Chemical Formula

While comparing Iddingsite and Chalcedony 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 Chalcedony chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Chalcedony- SiO₂

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Iddingsite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.