Agrellite and Boulder Opal Physical Properties

Agrellite

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

2.881.98-2.25

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

perfect [110]

Not Available

1.7 Mohs Hardness

5.55-6.5

2 10

1.8 Chemical Composition

NaCa2Si4O10F

SiO 2 + H 2OUlrich Henn and Claudio C.

Agrellite and Boulder Opal Chemical Formula

While comparing Agrellite 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 Agrellite and Boulder Opal chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Agrellite and Boulder Opal Specific Gravity

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