Dumortierite and Scapolite Physical Properties

Dumortierite

Scapolite

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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

3.26-3.412.58-2.74

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

{100} Distinct, {110} Distinct

1.7 Mohs Hardness

7-8.55.5-6

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Dumortierite and Scapolite Chemical Formula

While comparing Dumortierite and Scapolite 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 Dumortierite and Scapolite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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Dumortierite and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.