Gedrite and Kyanite Physical Properties

Gedrite

Kyanite

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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

3.15-3.2593.53-3.65

1 7.18

1.5 Fracture

Not Available

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

5.5-64-7

2 10

1.8 Chemical Composition

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

Not Available

Gedrite and Kyanite Chemical Formula

While comparing Gedrite and Kyanite 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 Gedrite and Kyanite chemical formula.

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

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Gedrite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.