Cinnabar and Phosphosiderite Physical Properties

Cinnabar

Phosphosiderite

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Physical Properties

Tenacity

Slightly sectile

Solubility

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

Durability

Specific Gravity

22.74-2.76

1 7.18

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Fracture

Uneven

Cleavage

Prismatic {10 1 0}, perfect

{010} Perfect, {001} Distinct

Mohs Hardness

2-2.53.5-4

2 10

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Chemical Composition

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Cinnabar and Phosphosiderite Chemical Formula

While comparing Cinnabar 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 Cinnabar and Phosphosiderite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Compare Red Gemstones

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Cinnabar and Phosphosiderite Specific Gravity

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