Alabaster and Emerald Physical Properties

Alabaster

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.302.67-2.78

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Imperfect on the [0001]

1.7 Mohs Hardness

27.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Alabaster and Emerald Chemical Formula

While comparing Alabaster and Emerald 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 Emerald chemical formula.

Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Emerald- Be₃Al₂SiO₆

Compare Brown Gemstones

Alabaster Vs Anhydrite

Alabaster Vs Anthophyllite

Alabaster Vs Astrophyllite

Alabaster and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alabaster and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Emerald Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 2.67-2.78 whereas that of Emerald is 2.67-2.78.