Vivianite and Orthoclase Physical Properties

Vivianite

Orthoclase

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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

2.64-2.702.54-2.61

1 7.18

1.5 Fracture

(e.g. graphite).

Gems, Uneven

1.6 Cleavage

{010} Perfect

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

Not Available6

2 10

1.8 Chemical Composition

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

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Vivianite and Orthoclase Chemical Formula

While comparing Vivianite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vivianite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.