Dumortierite and Phosphosiderite Physical Properties

Dumortierite

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

3.26-3.412.74-2.76

1 7.18

1.5 Fracture

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

7-8.53.5-4

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Phosphosiderite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Phosphosiderite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

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Dumortierite and Phosphosiderite Specific Gravity

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