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Jadeite is a pyroxene mineral with composition Na Al Si 2 O 6. It is hard ( Mohs hardness of about 6.5 to 7.0), very tough, and dense, with a specific gravity of about 3.4. It is found in a wide range of colors, but is most often found in shades of green or white. Jadeite is formed only in the subduction zones of continental margins, where rock ...
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.
Color: Purple, violet, dark purple: Crystal habit: 6 sided prism ending in 6 sided pyramid (typical) Twinning: Dauphine law, Brazil law, and Japan law: Cleavage: None: Fracture: Conchoidal: Mohs scale hardness: 7 (lower in impure varieties) Luster: Vitreous/glassy: Streak: White: Diaphaneity: Transparent to translucent: Specific gravity: 2.65 ...
Larimar is the tradename for a rare blue variety of the silicate mineral pectolite found only in the Dominican Republic, around the city of Barahona. 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 ...
The color matched the increasingly rare purple rock porphyry, also associated with the imperial family. Crimson and scarlet [ edit ] Tyrian purple retained its place as the premium dye of Europe until it was replaced "in status and desirability" [54] by the rich crimson reds and scarlets of the new silk - weaving centers of Italy, colored with ...
Charoite. 2O is a rare silicate mineral, first described in 1978. It is named after the Chara River, despite its being 70 km away from the discovery place; the name of the river translated from Evenki means “to melt, melt.”. [6] [3] When it was discovered, it was thought to be a fake, dyed purple to give it its striking appearance.
Lapis is the Latin word for "stone" and lazulī is the genitive form of the Medieval Latin lazulum, which is taken from the Arabic لازورد lāzaward, itself from the Persian لاژورد lāžavard/lāževard and/or لاجورد lājevard. It means "sky" or "heaven"; so this is a "stone (of/from) the sky" or "stone (of/from) heaven". [11]
Tyrian purple dye was “phenomenally difficult to make” because it required “thousands of crushed seashells” and was only produced along the Mediterranean coast and North Africa, the ...
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. It is part of the uniform of such brotherhoods including the Nazarenos and Fariseos during Easter observances and reenactments in some areas during Holy Week in Spain and its former colonies, though ...
Opal. Hydrated silica. SiO 2 · n H 2 O. Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals.