Phosphosiderite and Precious Opal Physical Properties

Phosphosiderite

Precious Opal

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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

2.74-2.761.98-2.25

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

{010} Perfect, {001} Distinct

Not Available

1.7 Mohs Hardness

3.5-45-6.5

2 10

1.8 Chemical Composition

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

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Phosphosiderite and Precious Opal Chemical Formula

While comparing Phosphosiderite and Precious Opal 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 Precious Opal chemical formula.

Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Phosphosiderite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.