Amethyst is a purple variety of quartz (SiO2) and owes its violet colour to irradiation, impurities of iron and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions. Popular for its purple colouring it is used for jewelry and is the birthstone for February. [HASH=698]#Amethyst[/HASH]
Canon EOS M100 • EF-M28mm f/3.5 MACRO IS STM • ƒ/3.5 28.0 mm 1/80 1600 Flash (off, did not fire)
Multiple light sources were used to get the desired effect.
Canon EOS M100 • EF-M28mm f/3.5 MACRO IS STM • ƒ/3.5 28.0 mm 1/80 1600 Flash (off, did not fire)
Multiple light sources were used to get the desired effect.
