Hibonite and Alabaster Physical Properties

Hibonite

Alabaster

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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

3.842.30

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{0001} good, {10 1 0} parting

Not Available

1.7 Mohs Hardness

7.5-82

2 10

1.8 Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Alabaster Chemical Formula

While comparing Hibonite and Alabaster 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 Hibonite and Alabaster chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

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Hibonite and Alabaster Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibonite and Alabaster Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Alabaster Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 2.30 whereas that of Alabaster is 2.30.