citrine

Citrine

Citrine is a yellow or golden variety of quartz. Most citrine available today is heat-treated amethyst, the name Citrine is derived from the citron fruit, a yellow fruit similar to the lemon. Natural Citrine is not common; most Citrine on the gem market is produced by heat treating Amethyst and Smokey Quartz.

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: Hexagonal (trigonal) hexagonal prisms with pyramids
Colour: Yellow, Orange, Brown
Hardness: 7 on Moh`s scale
Refractive Index: 1.54 – 1.55
Specific Gravity: 2.63 – 2.65
Cleavage: None

Treatments: Virtually all gem Citrine is not naturally coloured, but rather coloured from heat treatment of Amethyst. The intense yellow shades often known as Lemon Quartz are usually formed by irradiation of Quartz. Synthetic Citrine gems are also produced using the hydrothermal method, and these are usually in intensely vivid colours.

Care: Citrine 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, as citrine should not be subjected to heat.