Montebrasite and Fayalite Physical Properties

Montebrasite

Fayalite

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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

2.98-3.104.392

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

{010} moderate, {100} imperfect

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

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Montebrasite and Fayalite Chemical Formula

While comparing Montebrasite and Fayalite 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 Fayalite 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 Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Montebrasite and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 4.392 whereas that of Fayalite is 4.392.