Jacobsite and Andesine Physical Properties

Jacobsite

Andesine

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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

4.76-5.032.65-2.69

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Perfect on {001}, good on {010}

1.7 Mohs Hardness

5.5-6.56-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)Al_1-2Si_3-2O₈

Jacobsite and Andesine Chemical Formula

While comparing Jacobsite and Andesine 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 Andesine chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈

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Jacobsite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.