Ettringite and Hemimorphite Physical Properties

Ettringite

Hemimorphite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partially soluble in water

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.773.30-3.50

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

Perfect on {10 1 0}

Perfect on {110}, poor on {101}, {001} rare

1.7 Mohs Hardness

2-2.55

2 10

1.8 Chemical Composition

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

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ettringite and Hemimorphite Chemical Formula

While comparing Ettringite and Hemimorphite 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 Ettringite and Hemimorphite chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Yellow Gemstones

Ettringite Vs Garnet

Ettringite Vs Gadolinium Gallium Garnet

Ettringite Vs Forsterite

Ettringite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.