Bastnasite and Dioptase Physical Properties

Bastnasite

Dioptase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.95-5.03.25-3.35

1 7.18

1.5 Fracture

Uneven

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

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

Perfect in three directions

1.7 Mohs Hardness

4-55

2 10

1.8 Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bastnasite and Dioptase Chemical Formula

While comparing Bastnasite and Dioptase 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 Dioptase chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bastnasite and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.