Mellite and Prehnite Physical Properties

Mellite

Prehnite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.58-1.60

2.80-2.95

1.5 Fracture

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

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

{011} Imperfect

Distinct on [001]

1.7 Mohs Hardness

6-6.5

1.8 Chemical Composition

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Ca₂Al₂Si₃O₁₂(OH)

Mellite and Prehnite Chemical Formula

While comparing Mellite and Prehnite 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 Mellite and Prehnite chemical formula.

Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

Compare Brown Gemstones

Mellite Vs Morion

Mellite Vs Mother of Pearl

Mellite Vs Narsarsukite

Mellite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mellite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Mellite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.

Brown Gemstones

Microlite

Mimetite

Mohawkite

Moonstone

Morion

Mother of Pearl