Indicolite Blue Tourmaline and Montebrasite Physical Properties

Indicolite Blue Tourmaline

Montebrasite

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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

3.05-3.112.98-3.10

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

7-7.55.5-6

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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

Indicolite Blue Tourmaline and Montebrasite Chemical Formula

While comparing Indicolite Blue Tourmaline and Montebrasite 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 Indicolite Blue Tourmaline and Montebrasite chemical formula.

Chemical formula of Indicolite Blue Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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Indicolite Blue Tourmaline and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Indicolite Blue Tourmaline and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Indicolite Blue Tourmaline and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Indicolite Blue Tourmaline is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.