Gedrite and Ruby Physical Properties

Gedrite

Ruby

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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

3.15-3.2593.97-4.05

1 7.18

1.5 Fracture

Not Available

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

5.5-69

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)

Al ₂ O ₃

Gedrite and Ruby Chemical Formula

While comparing Gedrite and Ruby 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 Ruby 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)
Chemical formula of Ruby- Al ₂ O ₃

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Gedrite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.