Watermelon Tourmaline and Montebrasite Physical Properties

Watermelon 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

2.90-3.402.98-3.10

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)

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

Watermelon Tourmaline and Montebrasite Chemical Formula

While comparing Watermelon 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 Watermelon Tourmaline and Montebrasite chemical formula.

Chemical formula of Watermelon 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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Watermelon Tourmaline and Montebrasite Specific Gravity

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