Brucite and Vivianite Physical Properties

Brucite

Vivianite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.392.64-2.70

1 7.18

1.5 Fracture

Irregular

(e.g. graphite).

1.6 Cleavage

Perfect on {0001}

{010} Perfect

1.7 Mohs Hardness

2.5Not Available

2 10

1.8 Chemical Composition

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Brucite and Vivianite Chemical Formula

While comparing Brucite and Vivianite 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 Brucite and Vivianite chemical formula.

Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Brucite Vs Chrysocolla

Brucite Vs Chrome Tourmaline

Brucite Vs Common Opal

Brucite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brucite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Brucite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.