Kyanite Orange, daga Tanzaniya

Kyanite ta Tanzania

Gemstone Info

Bayanin Gemstone

Kyanite Orange, daga Tanzaniya

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Kyanite ne yawanci blue silicate ma'adinai, fiye samu a aluminum-arziki metamorphic pegmatites da / ko sedimentary dutse. Kyanite a metamorphic kankara kullum ya nuna matsin lamba fi hudu kilobars. Ko da yake yiwuwar barga a ƙananan matsa lamba da kuma low zafin jiki, da ayyukan ruwa ne yawanci high isa a karkashin irin wannan yanayi da cewa shi ne maye gurbinsu hydrous aluminosilicates kamar muscovite, pyrophyllite, ko kaolinite. Kyanite kuma aka sani da disthene, rhaeticite da cyanite.

Kyanite ne memba na aluminosilicate jerin, wanda kuma ya hada da polymorph andalusite da polymorph sillimanite. Kyanite ne karfi da anisotropic, a cewa, da taurin dabam dangane da crystallographic shugabanci. A kyanite, wannan anisotropism za a iya dauke da wani gano halayyar.

A yanayin zafi sama da 1100 ° C kyanite decomposes cikin mullite da vitreous silica via da wadannan dauki: 3 (Al2O3 · SiO2) → 3Al2O3 · 2SiO2 + SiO2. Wannan canji results a cikin wani fadada.

Its sunan zo daga wannan asalin matsayin cewa daga cikin launi Cyan, ana samu daga Ancient Greek kalma κύανος. Wannan ne kullum fassara a cikin harshen Turanci kamar yadda kyanos ko kuanos kuma yana nufin "duhu blue".

An yi amfani da Kyanite a matsayin gemstone mai zurfi, wanda zai iya nuna ido ga idanu, kodayake wannan amfani ya iyakance ne ta wurin anisotropism da kuma cikakkiyar shinge. Yanayin launin sun hada da kyanite orange daga Tanzaniya kwanan nan. Launi na orange shine saboda hada da ƙananan manganese (Mn3 +) a cikin tsari.

Identification

Kayan Kyanite, lu'ulu'u na columnar yawanci sune na farko da suka nuna ma'adinai, da launi (lokacin da samfurin ya zama blue). Ma'adanai da aka haɗa sune mahimmanci, musamman maganin polymorphs na staurolite, wanda ke faruwa sau da yawa tare da kyanite. Duk da haka, yanayin da yafi dacewa wajen gano kyanite shine anisotropism. Idan wanda ake tuhumar samfurin da zai zama kyanite, yana tabbatar da cewa yana da nau'i daban-daban a kan ginshiƙan kwaskwarima shine maɓalli don ganewa, yana da wahalar 5.5 a layi daya zuwa {001} da 7 daidai da {100}

Kyanite Orange, daga Tanzaniya

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