Humite and Grossular Physical Properties

Humite

Grossular

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.323.55-3.73

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Poor

none

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Humite and Grossular Chemical Formula

While comparing Humite and Grossular 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 Humite and Grossular chemical formula.

Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Humite and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Humite and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Humite and Grossular Optical Properties during the identification of gemstone. Specific gravity of Humite is 3.55-3.73 whereas that of Grossular is 3.55-3.73.