Mellite and Boulder Opal Physical Properties

Mellite

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

1.58-1.601.98-2.25

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

{011} Imperfect

Not Available

1.7 Mohs Hardness

25-6.5

2 10

1.8 Chemical Composition

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

SiO 2 + H 2OUlrich Henn and Claudio C.

Mellite and Boulder Opal Chemical Formula

While comparing Mellite 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 Mellite and Boulder Opal chemical formula.

Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Brown Gemstones

Mellite Vs Mother of Pearl

Mellite Vs Morion

Mellite Vs Narsarsukite

Mellite and Boulder Opal Specific Gravity

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