Vivianite and Hiddenite Physical Properties

Vivianite

Hiddenite

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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

2.64-2.703.15-3.21

1 7.18

1.5 Fracture

(e.g. graphite).

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{010} Perfect

1,2 prismatic

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

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

LiAlSi₂O₆

Vivianite and Hiddenite Chemical Formula

While comparing Vivianite and Hiddenite 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 Hiddenite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Hiddenite- LiAlSi₂O₆

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Vivianite and Hiddenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Hiddenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Hiddenite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.15-3.21 whereas that of Hiddenite is 3.15-3.21.