Montebrasite and Fire Opal Physical Properties

Montebrasite

Fire Opal

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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

2.98-3.101.97-2.22

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

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

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Montebrasite and Fire Opal Chemical Formula

While comparing Montebrasite and Fire Opal 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 Fire Opal 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 Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Montebrasite and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.