Agrellite and Kyanite Physical Properties

Agrellite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.883.53-3.65

1 7.18

1.5 Fracture

Not Available

Splintery, Brittle, Metallic

1.6 Cleavage

perfect [110]

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

5.54-7

2 10

1.8 Chemical Composition

NaCa2Si4O10F

Not Available

Agrellite and Kyanite Chemical Formula

While comparing Agrellite and Kyanite 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 Agrellite and Kyanite chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F

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Agrellite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Agrellite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agrellite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Agrellite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.