Helenite and Forsterite Physical Properties

Helenite

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

Not Available3.23-3.26

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

Not Available

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

Helenite and Forsterite Chemical Formula

While comparing Helenite 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 Helenite and Forsterite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Helenite and Forsterite Specific Gravity

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