amethyst

Amethyst

Amethyst is one of the most popular gemstones, and has been considered valuable since ancient times. Its name derives from the Greek “amethystos”, which means “not drunken”, as Amethyst was thought to ward of drunkenness. Amethyst was once highly regarded among the precious gemstones like Ruby and Emerald, but discoveries of huge Amethyst deposits since the 1800′s have made Amethyst fairly inexpensive and very obtainable. Amethyst colours range from light to dark purple, and the transparent deep purple colours are the most highly regarded.

Stock Sizes: Available in both Faceted (including checkerboard, barrel cut and buff top) and Cabochon
Rounds: 1mm – 15mm
Oval: 3x2mm – 20x15mm
Pear: 3x2mm – 20x15mm
Marquise: 3×1.5mm – 22x7mm
Octagonal: 4x3mm – 20x15mm
Octagonal/Radiant Cut: 6x4mm – 14x10mm
Trillion: 2mm – 14mm
Triangle: 3mm – 12mm
Hexagon: 4x4mm – 10x10mm + 5x3mm – 8x6mm
Heart: 3mm – 15mm
Square: 1.5mm – 12mm
Rectangle: 3×1.5mm – 20x15mm
Tapered Baguette: 3x2x1mm – 5x3x2mm
Cushion: 2.5×2.5mm – 14x14mm + 4x3mm – 16x12mm

Along with various special cuts including Pie/Fan, Doughnut, Tombstone, Window, Lozenge and Barrel cut, we also stock a large selection of specimen stones

Chemical Formula: SiO2 Silicon Dioxide
Crystal Structure: Trigonal; Hexagonal Prisms
Colour: Violet, Pale Red-Violet, Purple
Hardness: 7 on Moh`s scale
Refractive Index: 1.544 to 1.553
Specific Gravity: 2.66
Cleavage: None

Treatments: Amethyst quartz is typically untreated. Some amethyst stones may be enhanced though heating, but heating of amethyst will reduce colouring agent and result in ‘heated citrine’. Heating can remove unwanted brownish inclusions in some amethysts or lighten the colour of overly dark stones.

Care: Amethyst can be safely cleaned with warm soapy water. Ultrasonic cleaners are usually safe except in the rare instances where a stone is dyed or treated by fracture filling. Steam cleaning is not recommended, and amethyst should not be subjected to heat.