Angelite and Herderite Physical Properties

Angelite

Herderite

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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

Not Available2.90-3.02

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Not Available

Indistinct on {110}

1.7 Mohs Hardness

3.55-5.5

2 10

1.8 Chemical Composition

Not Available

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

Angelite and Herderite Chemical Formula

While comparing Angelite and Herderite 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 Angelite and Herderite chemical formula.

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

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Angelite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Angelite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Angelite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Angelite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.