Montebrasite and Sard Physical Properties

Montebrasite

Sard

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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

2.98-3.102.58-2.63

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Montebrasite and Sard Chemical Formula

While comparing Montebrasite and Sard 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 Sard 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 Sard- SiO 2Ulrich Henn and Claudio C.

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Montebrasite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Sard Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 2.58-2.63 whereas that of Sard is 2.58-2.63.