Scapolite and Gedrite Physical Properties

Scapolite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.58-2.743.15-3.259

1 7.18

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Fracture

ConchoidalWalter Schumann, Splintery

Cleavage

{100} Distinct, {110} Distinct

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

Mohs Hardness

5.5-65.5-6

2 10

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Chemical Composition

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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

Scapolite and Gedrite Chemical Formula

While comparing Scapolite 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 Scapolite and Gedrite chemical formula.

Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) 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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Scapolite and Gedrite Specific Gravity

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