GEMOLOGICAL PROPERTIES OF AMETHYST
- Color Purple (sometimes Green)
- Family Quartz
- Mohs Scale Hardness 7
- Specific Gravity 2.65
- Refractive Index 1.532 – 1.554
- Lustre Vitreous
- Crystal System Trigonal
- Transparency Transparent to
- translucent
- Chemical Formula SiO2
- Composition Silicon Dioxide
Physical Properties of Amethyst
- Color: Amethyst is typically purple to violet in color, although it can also range from pale lilac to deep purple.
- Crystal Structure: Amethyst has a hexagonal crystal structure, meaning that its crystals have six sides.
- Hardness: Amethyst has a Mohs hardness of 7, making it relatively hard and durable. This means it is resistant to scratching and can withstand moderate wear and tear.
- Cleavage: Amethyst has no distinct cleavage, meaning that it does not break along specific planes or directions.
- Transparency: Amethyst can be transparent to translucent, depending on the quality of the specimen.
- Luster: Amethyst has a vitreous (glassy) luster, which gives it a bright and shiny appearance.
- Specific Gravity: The specific gravity of amethyst is around 2.65, meaning that it is slightly denser than water.
- Refractive Index: The refractive index of amethyst is around 1.54 to 1.55, meaning that light bends slightly as it passes through the crystal.
- Fluorescence: Some amethyst specimens exhibit fluorescence, meaning that they emit visible light when exposed to ultraviolet light.
- 10.Magnetism: Amethyst is not magneti