Andradite and Siderite Physical Properties

Andradite

Siderite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.103.83-3.89

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

none

Perfect on {01 1 1}

1.7 Mohs Hardness

6.5-73.5-4.5

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Andradite and Siderite Chemical Formula

While comparing Andradite and Siderite 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 Andradite and Siderite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Andradite Vs Augite

Andradite Vs Astrophyllite

Andradite Vs Aragonite

Andradite and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.