Foitite and Chrysocolla Physical Properties

Foitite

Chrysocolla

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.172.00-2.45

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

none

1.7 Mohs Hardness

72-4

2 10

1.8 Chemical Composition

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Cu₂H₂Si₂O₅(OH)₄

Foitite and Chrysocolla Chemical Formula

While comparing Foitite and Chrysocolla 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 Foitite and Chrysocolla chemical formula.

Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Chrysocolla- Cu₂H₂Si₂O₅(OH)₄

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Foitite and Chrysocolla Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Chrysocolla Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Chrysocolla Optical Properties during the identification of gemstone. Specific gravity of Foitite is 2.00-2.45 whereas that of Chrysocolla is 2.00-2.45.