Herderite and Chrysoberyl Physical Properties

Herderite

Chrysoberyl

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-3.023.69-3.81

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Cleavage

Indistinct on {110}

Distinct on {110}, imperfect on {010}, poor on {001}

Mohs Hardness

5-5.58.5

2 10

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Chemical Composition

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

BeAl ₂ O ₄

Herderite and Chrysoberyl Chemical Formula

While comparing Herderite and Chrysoberyl 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 Herderite and Chrysoberyl chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Chrysoberyl- BeAl ₂ O ₄

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Herderite Vs Phenakite

Herderite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.