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Amethyst is a purple variety of quartz (SiO 2) and owes its violet color to irradiation, impurities of iron (Fe 3+) and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions. The irradiation causes the iron Fe 3+
Its coloration varies from bluish white, light-blue, light-green, green-blue, turquoise blue, turquoise green, turquoise blue-green, deep green, dark green, to deep blue, dark blue and purple, violet and indigo and the larimar can come in many varieties and color mixes.
The premier luxury dye of the ancient world was Tyrian purple or royal purple, a purple-red dye which is extracted from several genera of sea snails, primarily the spiny dye-murex Murex brandaris (currently known as Bolinus brandaris). Murex dye was greatly prized in antiquity because it did not fade, but instead became brighter and more ...
Charoite is translucent lavender to purple in color with a pearly luster. Charoite is strictly massive in nature, and fractures are conchoidal. It has an unusual swirling, fibrous appearance, sometimes chatoyant, and that, along with its intense color, can lead many to believe at first that it is synthetic or enhanced artificially.
Lapis lazuli ( UK: / ˌlæpɪs ˈlæz ( j) ʊli, ˈlæʒʊ -, - ˌli /; US: / ˈlæz ( j) əli, ˈlæʒə -, - ˌli / ), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.
Brotherhood with green capirotes in Malaga. Brotherhood of Saint Rochus with velvet capirotes. Brotherhood with silk capirotes. A capirote [1] is a Catholic pointed hat of conical form that is used in Spain and Hispanic countries by members of a confraternity of penitents.
Jadeite's color commonly ranges from white through pale apple green to deep jade green but can also be blue-green (like the recently rediscovered "Olmec Blue" jade), pink, lavender and a multitude of other rare colors.
The Spanish Republican Flag has three colours: red, yellow, and dark purple. The third colour, dark purple (Spanish: morado oscuro), represents Castile and León by recalling the Pendón Morado, the ancient armorial banner of Castile. The colours of red and yellow symbolise the territories of the former Crown of Aragon.
Besides the gemstone varieties that show a play of color, the other kinds of common opal include the milk opal, milky bluish to greenish (which can sometimes be of gemstone quality); resin opal, which is honey-yellow with a resinous luster; wood opal, which is caused by the replacement of the organic material in wood with opal; menilite, which ...
Purpura ( / ˈpɜːrpjʊərə / [1]) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes. [2]