Gedrite and Dallasite Physical Properties

Gedrite

Dallasite

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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

3.15-3.2592.58-2.91

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.5-66.5-7

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 Dallasite Chemical Formula

While comparing Gedrite and Dallasite 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 Dallasite 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 Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.