Ettringite and Actinolite Physical Properties

Ettringite

Actinolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partially soluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.773.00

1 7.18

1.5 Fracture

Not Available

Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery

1.6 Cleavage

Perfect on {10 1 0}

perfect along {110}.

1.7 Mohs Hardness

2-2.55-6

2 10

1.8 Chemical Composition

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

Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Ettringite and Actinolite Chemical Formula

While comparing Ettringite and Actinolite 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 Actinolite chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Compare Yellow Gemstones

Ettringite Vs Garnet

Ettringite Vs Gadolinium Gallium Garnet

Ettringite Vs Forsterite

Ettringite and Actinolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Actinolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Actinolite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.00 whereas that of Actinolite is 3.00.