Vivianite and Dumortierite Physical Properties

Vivianite

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

2.64-2.703.26-3.41

1 7.18

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Perfect

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

1.7 Mohs Hardness

Not Available7-8.5

2 10

1.8 Chemical Composition

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

AlAl₆O₃BSi₃O₁₈

Vivianite and Dumortierite Chemical Formula

While comparing Vivianite 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 Vivianite and Dumortierite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Vivianite and Dumortierite Specific Gravity

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