Amethyst and Riebeckite Physical Properties

Amethyst

Riebeckite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.28-3.44

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, Splintery, Brittle

1.6 Cleavage

Indiscernible

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

75.0-6.0

2 10

1.8 Chemical Composition

SiO₂

Not Available

Amethyst and Riebeckite Chemical Formula

While comparing Amethyst and Riebeckite 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 Amethyst and Riebeckite chemical formula.

Chemical formula of Amethyst- SiO₂

Compare Semi Precious Gemstones

Amethyst Vs Moonstone

Amethyst Vs Jade

Amethyst Vs Jasper

Amethyst and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.