Pleonaste and Bertrandite Physical Properties

Pleonaste

Bertrandite

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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

3.802.59-2.60

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

86-7

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Pleonaste and Bertrandite Chemical Formula

While comparing Pleonaste and Bertrandite 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 Pleonaste and Bertrandite chemical formula.

Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

Pleonaste Vs Rubellite

Pleonaste Vs Pyrophyllite

Pleonaste Vs Rock Crystal

Pleonaste and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pleonaste and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.