Fuchsite and Dumortierite Physical Properties

Fuchsite

Dumortierite

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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

2.77-2.88

3.26-3.41

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal

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

1.7 Mohs Hardness

2.5

7-8.5

1.8 Chemical Composition

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

AlAl₆O₃BSi₃O₁₈

Fuchsite and Dumortierite Chemical Formula

While comparing Fuchsite and Dumortierite 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 Fuchsite and Dumortierite chemical formula.

Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Fuchsite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fuchsite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fuchsite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Fuchsite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.