Smaragdite and Gedrite Physical Properties

Smaragdite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.24-3.503.15-3.259

1 7.18

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Fracture

Cleavage

None

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

Mohs Hardness

5.55.5-6

2 10

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Chemical Composition

NaCa2(Al,Fe)3Si6O18(OH)4

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

Smaragdite and Gedrite Chemical Formula

While comparing Smaragdite 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 Smaragdite and Gedrite chemical formula.

Chemical formula of Smaragdite- NaCa2(Al,Fe)3Si6O18(OH)4
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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Smaragdite and Gedrite Specific Gravity

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