Alabaster and Crystal Opal Physical Properties

Alabaster

Crystal 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

2.301.97-2.22

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

25.5-6.5

2 10

1.8 Chemical Composition

CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

SiO 2 + H 2OUlrich Henn and Claudio C.

Alabaster and Crystal Opal Chemical Formula

While comparing Alabaster and Crystal 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 Alabaster and Crystal Opal chemical formula.

Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Brown Gemstones

Alabaster Vs Anhydrite

Alabaster Vs Anthophyllite

Alabaster Vs Astrophyllite

Alabaster and Crystal Opal Specific Gravity

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