Eosphorite and Boulder Opal Physical Properties

Eosphorite

Boulder 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

3.05-3.081.98-2.25

1 7.18

1.5 Fracture

Subconchoidal, Uneven, Conchoidal, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor on {100}

Not Available

1.7 Mohs Hardness

55-6.5

2 10

1.8 Chemical Composition

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2 + H 2OUlrich Henn and Claudio C.

Eosphorite and Boulder Opal Chemical Formula

While comparing Eosphorite and Boulder 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 Eosphorite and Boulder Opal chemical formula.

Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Eosphorite and Boulder Opal Specific Gravity

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