Herderite and Peridot Physical Properties

Herderite

Peridot

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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

2.90-3.021.54-1.55

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Indistinct on {110}

Poor

1.7 Mohs Hardness

5-5.56.5-7

2 10

1.8 Chemical Composition

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

(Mg,Fe)₂SiO₄

Herderite and Peridot Chemical Formula

While comparing Herderite and Peridot 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 Peridot chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Herderite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Herderite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.