Annabergite and Cobaltite Physical Properties

Annabergite

Cobaltite

Add ⊕

1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.076.3

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

Perfect on {010}, indistinct on {100} and {102}

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

25.5

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

CoAsSAnthony et al , Handbook of mineralogy (2001)

Annabergite and Cobaltite Chemical Formula

While comparing Annabergite and Cobaltite 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 Annabergite and Cobaltite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Annabergite Vs Beudantite

Annabergite Vs Cavansite

Annabergite Vs Chlorite group

Annabergite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 6.3 whereas that of Cobaltite is 6.3.