Herderite and Forsterite Physical Properties

Herderite

Forsterite

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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

2.90-3.023.23-3.26

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

Indistinct on {110}

Perfect on {010} imperfect on {100}

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 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Herderite and Forsterite Chemical Formula

While comparing Herderite and Forsterite 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 Forsterite chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Herderite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.