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Bastnasite and Tourmaline Physical Properties


Tourmaline and Bastnasite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.95-5.0   
2.85-3.35   

Fracture
Uneven   
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}   
Indistinct   

Mohs Hardness
4-5   
7-7.5   

Chemical Composition
(Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.   

Optical Properties >>
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Bastnasite and Tourmaline Chemical Formula

While comparing Bastnasite and Tourmaline 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 Bastnasite and Tourmaline chemical formula.

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Bastnasite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.

Red Gemstones

Red Gemstones


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