Garnet and Ettringite Physical Properties

Garnet

Ettringite

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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

3.55-4.331.77

1 7.18

1.5 Fracture

Conchoidal, Uneven

Not Available

1.6 Cleavage

Indistinct

Perfect on {10 1 0}

1.7 Mohs Hardness

6.5-7.52-2.5

2 10

1.8 Chemical Composition

Garnet is a series of several different minerals with unique chemical formulas.

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

Garnet and Ettringite Chemical Formula

While comparing Garnet 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 Garnet and Ettringite chemical formula.

Chemical formula of Garnet- Garnet is a series of several different minerals with unique chemical formulas.
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Garnet and Ettringite Specific Gravity

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