Phosphosiderite and Calcite Physical Properties

Phosphosiderite

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.76

2.67-2.73

1.5 Fracture

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

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

1.6 Cleavage

{010} Perfect, {001} Distinct

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

3.5-4

1.8 Chemical Composition

Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

CaCO 3Ulrich Henn and Claudio C.

Phosphosiderite and Calcite Chemical Formula

While comparing Phosphosiderite and Calcite 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 Phosphosiderite and Calcite chemical formula.

Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Phosphosiderite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.