Agrellite and Chalcedony Physical Properties

Agrellite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.882.55-2.70

1 7.18

1.5 Fracture

Not Available

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

perfect [110]

Absent

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

NaCa2Si4O10F

SiO₂

Agrellite and Chalcedony Chemical Formula

While comparing Agrellite and Chalcedony 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 Chalcedony chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Chalcedony- SiO₂

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Agrellite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Agrellite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agrellite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Agrellite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.