Vlasovite and Black Opal Physical Properties

Vlasovite

Black Opal

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Nearly insoluble in HCl and HNO₃

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.971.97-2.22

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

Distinct on {010}

Not Available

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

Not Available

SiO 2 + H 2OUlrich Henn and Claudio C.

Vlasovite and Black Opal Chemical Formula

While comparing Vlasovite and Black 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 Vlasovite and Black Opal chemical formula.

Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Brown Gemstones

Vlasovite Vs Allanite

Vlasovite Vs Alabaster

Vlasovite Vs Adamite

Vlasovite and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vlasovite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vlasovite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Vlasovite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.