Thulite and Agrellite Physical Properties

Thulite

Agrellite

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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

3.12.88

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

Perfect {010} imperfect {100}

perfect [110]

1.7 Mohs Hardness

6-75.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

NaCa2Si4O10F

Thulite and Agrellite Chemical Formula

While comparing Thulite and Agrellite 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 Thulite and Agrellite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Agrellite- NaCa2Si4O10F

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Thulite and Agrellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Agrellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Agrellite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.88 whereas that of Agrellite is 2.88.