Pumpellyite and Bertrandite Physical Properties

Pumpellyite

Bertrandite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.20-3.30

Perfect

5-6

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

2.59-2.60

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

6-7

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

Pumpellyite and Bertrandite Chemical Formula

While comparing Pumpellyite 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 Pumpellyite and Bertrandite chemical formula.

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Pumpellyite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite Vs Bertrandite during the identification of gemstone. Specific gravity of Pumpellyite is whereas that of Bertrandite is .