Jacobsite and Amethyst Physical Properties

Jacobsite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

4.76-5.032.65

1 7.18

1.5 Fracture

Conchoidal, Brittle

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

None

Indiscernible

1.7 Mohs Hardness

5.5-6.57

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

SiO₂

Jacobsite and Amethyst Chemical Formula

While comparing Jacobsite and Amethyst 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 Jacobsite and Amethyst chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Amethyst- SiO₂

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Jacobsite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.65 whereas that of Amethyst is 2.65.