Caledonite and Siderite Physical Properties

Caledonite

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

5.6-5.763.83-3.89

1 7.18

1.5 Fracture

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

[001] perfect; [100] distinct

Perfect on {01 1 1}

1.7 Mohs Hardness

2.5-33.5-4.5

2 10

1.8 Chemical Composition

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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

Caledonite and Siderite Chemical Formula

While comparing Caledonite 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 Caledonite and Siderite chemical formula.

Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Caledonite and Siderite Specific Gravity

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