Sugilite and Gedrite Physical Properties

Sugilite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.69-2.793.15-3.259

1 7.18

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Fracture

Conchoidal

Cleavage

Poor on {0001}

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

Mohs Hardness

5.5-6.55.5-6

2 10

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Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sugilite and Gedrite Chemical Formula

While comparing Sugilite 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 Sugilite and Gedrite chemical formula.

Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Sugilite and Gedrite Specific Gravity

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