Vivianite and Diopside Physical Properties

Vivianite

Diopside

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.64-2.703.22-3.40

1 7.18

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Perfect

Distinct/good on {110}

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

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

CaMgSi₂O₆

Vivianite and Diopside Chemical Formula

While comparing Vivianite and Diopside 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 Diopside chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Diopside- CaMgSi₂O₆

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Vivianite and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.