Beryl Emerald Rough Crystallized 12.639 Kg.
Channel: GMInternational
Date: 2019-08-23

Beryl Emerald Rough Crystallized

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NameBeryl
Group: Silicate/cyclosilicate
Crystal System: Hexagonal
Composition: Be3Al2Si6O18
Color: Green, Blue, Yellowish
Form/Habit: Prismatic
Hardness: 7 1/2 - 8
Cleavage: Indistinct
Fracture: UneventoConchoidal
Luster: Vitreous
Streak: White
SpecificGravity: 2.6 -2.8
Transparency: TransparenttoTranslucent.
R.I. 1.57 -1.58

Berylisknowntobeformed in by a prismaticcrystalthatresembles it as emeraldoraquamarine as it's principal gemstoneverities. Thesecrystallizedformationscanalsosometimesbeformed in a pyramid shape which are striatedparalleltotheirlength, andmayalsosometimesbeofvast in size. It canalsoform in a massivecompactorcolumnarhabitswhich are mainlyfound in granite, orgraniticpegmatites, andrhyolites, butcanalsooccur in metamorphic rocks, such as schist. Muchoftheemerald color isknowntobemainlydecomposedby traces ofchromium, and in some cases vanadium. 
Beryl in many cases maybecolorless, white, green, yellow, pink, red, and blue. It'sratherknowntoalsofusedifficultly, which rounds theedgesofsmallfragments. 
Otherareaswhere it mayoccurcanincluded mica schistformations, withinthe Ural Mountains, andwithinthelimestoneformationsof Columbia. Beryl it self isalsomainlyformedbytheassociationoftinandtungsten ore-bodies.

Berylisknowntoalsobecomposedofberylliumaluminumcyclosilicatewith a chemical formula of Be, AL, Si O). For themostparttwovarietiesofberyl are commonlyknownto include emeraldandaquamarinewhich its crystals are mainly hexagonal in shape. Butterminatedcrystalssuch as tourmaline are extremelyrare in theformationofBeryl.
 In several cases pureberylisclassified as colorlessbutmayalsobetintedbyothermineralssuch as chromium, andvanadiumtodecomposeanother color. Berylcanalsobefound in several countries aroundthe world like Brazil, Columbia, Madagascar, Mozambique, Europe, Norway, Austria, Germany, Sweden, Russia, andIreland,. Some ofthelargestberylcrystals are commonlyknowntobefound in New Englandwithinpegmatiteformations. 

Berylalsohas its owncleavagethatcanonlybeseenunder a microscope as it shows structural breaks within its crystalformation. 
Muchoftheidentificationsofcleavages are mainlydeterminedby its directionandanglesbetweenthem in ordertoprovidecluestoidentification. In several case thecrystallization in berylisknowntobeformed in a hexagonal shape just like apatite. 
Berylisalsoprismaticcrystalwhichproducessometimeslongprismaticcrystalswhich are inhabitedbyit'sformation. Other times berylcanalsobeformedwithinlepidolitewhichcontains a smallportionof mica with a substantialportionoflithiumthat makes its theearths common lithiumbearing material. 
Lepidoliteisalsooneofthe world oldest rock typethatisknowntobeolderthan 10 millionyears. Nottomentionberylisalso a cyclosilicatewhichgets its determinationfrom a phraseknown as cyclo, thatmeanscircle. 
Theseterms are knowntobegatheredduetothecrystalthatconsistofclosedring like circlesoftetrahedrawhichshare corners. Eachofthesetetrahedrons are knowntoalsosharetwoof its oxygenatomswithothertetrahedra.