Hercynite and Phosphosiderite Physical Properties

Hercynite

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

4.392.74-2.76

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

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

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

7.5-83.5-4

2 10

1.8 Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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

Hercynite and Phosphosiderite Chemical Formula

While comparing Hercynite 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 Hercynite and Phosphosiderite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

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Hercynite and Phosphosiderite Specific Gravity

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