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diseñador y distribuidor de gafas. Fundada en 1995 por François Fort, la empresa OPAL con sede en Lyon no sólo es líder europeo en monturas para niños y adolescentes, sino también el líder en Francia en el segundo par ofrecido por los ópticos.
L' òpal és un mineral de la classe dels òxids, emprat sovint en joieria. L'origen del nom és incert. Es creu que pot provenir del sànscrit upala, que significa "pedra" o "pedra preciosa" o de l'antic nom llatí de la gemma, opalus ( Plini el Vell, 75-79).
Opal is a hydrated amorphous form of silica (SiO 2 ·nH 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.
Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “Outback.” It is known for its unique display of flashing rainbow colors.
Opal puede ayudar a regular la insulina dentro del cuerpo y desintoxicar y regenerar el hígado. Ayuda con el parto y el síndrome premenstrual y estimula la vejiga, los riñones y los ganglios linfáticos.
1 de oct. de 2023 · Opal is one of the birthstones for October (along with Tourmaline) and is the gemstone given on a 14th wedding anniversary. The characteristic bright colours given out by Opal are caused by tiny amounts of moisture and silica trapped within the stone.
3 de ene. de 2024 · Opal is a fascinating mineral known for its unique play of colors and diversity. There are many types of opal, each with distinct characteristics that make them special. For example, boulder opal, hyalite, and fire opal are all unique forms of this mineral.
30 de oct. de 2022 · Many cultures have credited opal with supernatural origins and powers. Arabic legends say it falls from the heavens in flashes of lightning. The ancient Greeks believed opals gave their owners the gift of prophecy and guarded them from disease.
Hace 6 días · Opal from Yowah, Queensland, Australia. Definition: Opals are a type of mineraloid, which means they lack the crystalline structure of typical minerals. Instead, opals are composed of tiny spheres of silica, often arranged in a closely packed and orderly manner.
Opal, silica mineral extensively used as a gemstone, a submicrocrystalline variety of cristobalite. In ancient times opal was included among the noble gems and was ranked second only to emerald by the Romans. In the Middle Ages it was supposed to be lucky, but in modern times it has been regarded.
