Forsterite and Ettringite Physical Properties

Forsterite

Ettringite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.23-3.261.77

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect on {010} imperfect on {100}

Perfect on {10 1 0}

1.7 Mohs Hardness

6.5-72-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Forsterite and Ettringite Chemical Formula

While comparing Forsterite and Ettringite 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 Forsterite and Ettringite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Forsterite Vs Hackmanite

Forsterite Vs Grossular

Forsterite Vs Grandidierite

Forsterite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 1.77 whereas that of Ettringite is 1.77.