Hessonite and Gedrite Physical Properties

Hessonite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.55-3.733.15-3.259

1 7.18

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Fracture

Uneven

Cleavage

None

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

Mohs Hardness

7-7.55.5-6

2 10

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Chemical Composition

Ca3Al2(SiO4)3

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

Hessonite and Gedrite Chemical Formula

While comparing Hessonite 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 Hessonite and Gedrite chemical formula.

Chemical formula of Hessonite- Ca3Al2(SiO4)3
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

Hessonite Vs Mellite

Hessonite Vs Povondraite

Hessonite Vs Sonolite

Hessonite and Gedrite Specific Gravity

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