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- Euclase abstract "Euclase is a beryllium aluminium hydroxide silicate mineral (BeAlSiO4(OH)). It crystallizes in the monoclinic crystal system and is typically massive to fibrous as well as in slender prismatic crystals. It is related to beryl (Be3Al2Si6O18) and other beryllium minerals. It is a product of the decomposition of beryl in pegmatites.Euclase crystals are noted for their blue color, ranging from very pale to dark blue. The mineral may also be colorless, white, or light green. Cleavage is perfect, parallel to the clinopinacoid, and this suggested to René Just Haüy the name euclase, from the Greek εὖ, easily, and κλάσις, fracture. The ready cleavage renders the crystals fragile with a tendency to chip, and thus detracts from its use for personal ornament. When cut it resembles certain kinds of beryl and topaz, from which it may be distinguished by its specific gravity (3.1). Its hardness (7.5) is similar to beryl (7.5 - 8), and a bit less than that of topaz (8).It was first reported in 1792 from the Orenburg district in the southern Urals, Russia, where it is found with topaz and chrysoberyl in the gold-bearing gravels of the Sanarka (nowadays probably, Sakmara River, Mednogorsk district, Orenburgskaya Oblast'). Its type locality is Ouro Prêto, Minas Gerais, Southeast Region, Brazil, where it occurs with topaz. It is found rarely in the mica-schist of the Rauris in the Austrian Alps.".
- Euclase thumbnail Euclase_(Brésil).jpg?width=300.
- Euclase wikiPageID "1089326".
- Euclase wikiPageLength "3703".
- Euclase wikiPageOutDegree "32".
- Euclase wikiPageRevisionID "633822146".
- Euclase wikiPageWikiLink Aluminium.
- Euclase wikiPageWikiLink Beryl.
- Euclase wikiPageWikiLink Beryllium.
- Euclase wikiPageWikiLink Brazil.
- Euclase wikiPageWikiLink Category:Beryllium_minerals.
- Euclase wikiPageWikiLink Category:Monoclinic_minerals.
- Euclase wikiPageWikiLink Category:Nesosilicates.
- Euclase wikiPageWikiLink Chrysoberyl.
- Euclase wikiPageWikiLink Cleavage_(crystal).
- Euclase wikiPageWikiLink Clinopinacoid.
- Euclase wikiPageWikiLink Crystal_system.
- Euclase wikiPageWikiLink Hermann–Mauguin_notation.
- Euclase wikiPageWikiLink Hydroxide.
- Euclase wikiPageWikiLink Mednogorsk.
- Euclase wikiPageWikiLink Minas_Gerais.
- Euclase wikiPageWikiLink Monoclinic_crystal_system.
- Euclase wikiPageWikiLink Orenburg.
- Euclase wikiPageWikiLink Orenburg_Oblast.
- Euclase wikiPageWikiLink Pegmatite.
- Euclase wikiPageWikiLink Rauris.
- Euclase wikiPageWikiLink René_Just_Haüy.
- Euclase wikiPageWikiLink Russia.
- Euclase wikiPageWikiLink Sakmara_River.
- Euclase wikiPageWikiLink Schist.
- Euclase wikiPageWikiLink Silicate_minerals.
- Euclase wikiPageWikiLink Space_group.
- Euclase wikiPageWikiLink Topaz.
- Euclase wikiPageWikiLink Type_locality_(geology).
- Euclase wikiPageWikiLink Ural_Mountains.
- Euclase wikiPageWikiLink File:Euclase-21998.jpg.
- Euclase wikiPageWikiLinkText "Euclase".
- Euclase wikiPageWikiLinkText "euclase".
- Euclase 2v "50".
- Euclase birefringence "δ = 0.019".
- Euclase category Silicate_minerals.
- Euclase cleavage "Perfect, perfect on {010}, imperfect on {110} {001}".
- Euclase color "Colorless, white, pale green to deep yellowish green, greenish blue, pale blue to deep blue".
- Euclase diaphaneity "Transparent, translucent".
- Euclase formula "BeAlSiO4".
- Euclase fracture "Conchoidal".
- Euclase gravity "2.99".
- Euclase habit "Prismatic crystals".
- Euclase luster "Vitreous".
- Euclase mohs "7.5".
- Euclase name "Euclase".
- Euclase opticalprop "Biaxial".
- Euclase pleochroism "May be marked in shades of deep blue".
- Euclase refractive "nα = 1.652 nβ = 1.655 nγ = 1.671".
- Euclase streak "White".
- Euclase strunz "9".
- Euclase symmetry Hermann–Mauguin_notation.
- Euclase symmetry "Monoclinic prismatic".
- Euclase symmetry "Space group: P 21/a".
- Euclase system Monoclinic_crystal_system.
- Euclase tenacity "Brittle".
- Euclase unitCell "a = 4.763 Å, b = 14.29 Å, c = 4.618 Å, β = 100.25°; Z=4".
- Euclase wikiPageUsesTemplate Template:Commons_category.
- Euclase wikiPageUsesTemplate Template:GreekFont.
- Euclase wikiPageUsesTemplate Template:Infobox_mineral.
- Euclase wikiPageUsesTemplate Template:Reflist.
- Euclase subject Category:Beryllium_minerals.
- Euclase subject Category:Monoclinic_minerals.
- Euclase subject Category:Nesosilicates.
- Euclase hypernym Mineral.
- Euclase type ChemicalSubstance.
- Euclase type Mineral.
- Euclase type Nesosilicate.
- Euclase type ChemicalObject.
- Euclase type Thing.
- Euclase type Q7946.
- Euclase comment "Euclase is a beryllium aluminium hydroxide silicate mineral (BeAlSiO4(OH)). It crystallizes in the monoclinic crystal system and is typically massive to fibrous as well as in slender prismatic crystals. It is related to beryl (Be3Al2Si6O18) and other beryllium minerals. It is a product of the decomposition of beryl in pegmatites.Euclase crystals are noted for their blue color, ranging from very pale to dark blue. The mineral may also be colorless, white, or light green.".
- Euclase label "Euclase".
- Euclase sameAs Q424245.
- Euclase sameAs أوكلاز.
- Euclase sameAs Эўклаз.
- Euclase sameAs Евклаз.
- Euclase sameAs Euklas.
- Euclase sameAs اوکلاز.
- Euclase sameAs Euclasio.
- Euclase sameAs Эвклаз.
- Euclase sameAs Euklazas.
- Euclase sameAs Euklaas.
- Euclase sameAs Euklas.
- Euclase sameAs m.0450nc.
- Euclase sameAs Эвклаз.
- Euclase sameAs Euklas.
- Euclase sameAs Евклаз.
- Euclase sameAs Q424245.
- Euclase wasDerivedFrom Euclase?oldid=633822146.
- Euclase depiction Euclase_(Brésil).jpg.
- Euclase isPrimaryTopicOf Euclase.
- Euclase name "Euclase".