Pyrope and Ettringite Physical Properties

Pyrope

Ettringite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in water

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-3.871.77

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

None

Perfect on {10 1 0}

1.7 Mohs Hardness

7-7.52-2.5

2 10

1.8 Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Pyrope and Ettringite Chemical Formula

While comparing Pyrope 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 Pyrope and Ettringite chemical formula.

Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

Pyrope Vs Rock Crystal

Pyrope Vs Rhodolite

Pyrope Vs Rubellite

Pyrope and Ettringite Specific Gravity

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