Cordierite Iolite and Phosphosiderite Physical Properties

Cordierite Iolite

Phosphosiderite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.662.74-2.76

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Not Available

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

7-7.53.5-4

2 10

1.8 Chemical Composition

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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

Cordierite Iolite and Phosphosiderite Chemical Formula

While comparing Cordierite Iolite and Phosphosiderite 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 Cordierite Iolite and Phosphosiderite chemical formula.

Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

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Cordierite Iolite and Phosphosiderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.