Montebrasite and Grossular Physical Properties

Montebrasite

Grossular

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.103.55-3.73

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{100} Perfect, {110} Good, {011} Distinct

none

1.7 Mohs Hardness

5.5-67-7.5

2 10

1.8 Chemical Composition

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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

Montebrasite and Grossular Chemical Formula

While comparing Montebrasite 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 Montebrasite and Grossular chemical formula.

Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Montebrasite and Grossular Specific Gravity

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