Sanidine and Gedrite Physical Properties

Sanidine

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.54-2.613.15-3.259

1 7.18

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Fracture

Uneven

Cleavage

{001} Perfect, {010} Good

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

Mohs Hardness

65.5-6

2 10

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Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Sanidine and Gedrite Chemical Formula

While comparing Sanidine 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 Sanidine and Gedrite chemical formula.

Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
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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Sanidine and Gedrite Specific Gravity

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