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Ama-Gemstones ama-optical phenomena

Ama-gemstone ama-optical phenomena avela endleleni ukukhanya kuhambelana ngayo nesakhiwo sekristallini segugu. Lokhu kuxhumana noma ukuphazanyiswa kungaba ngendlela yokusabalalisa okukhanya, ukucabangela, ukuphazamisa, ukuhlukanisa, ukumisa noma ukudlulisa.

Adularesence

I-Adularescence yinto ebomvu ye-blue sheen ekhombisa indawo ebusweni be-cabochon ye-Moonstone. Isimo sokuthungatha sivela ekuhlanganiseni kokukhanya nokucwenga kwamakhekhe amancane okuthiwa "albite" emakhadeni enyanga. Ubukhulu bezingqimba zamakristalu amancane anqume ikhwalithi ye-blue shimmer. Thinner ungqimba, ngcono i-flash blue. Lokhu ngokuvamile kubonakala njengomphumela wokukhanya we-billowy. Moonstone yi-orthoclase feldspars, elinye igama elithi "selenite". AmaRoma abiza ngokuthi i-Astrion.

Asterism

Ababambi bezinsika ngokuvamile bakhetha ukusika ama-cabochon, uma amatshe aphansi. Kulezi zinhlamvu kanye namatshe lapho ukukhanya kwehla phezu kwendawo ye-cabochon futhi kwenza imisebe enjengezinkanyezi, lo mkhuba ubizwa ngokuthi i-asterism. Kukhona ama-4 ray kanye nezinkanyezi ze-6 zezinkanyezi ezibheke ngokuvamile. Lokhu kwenzeka uma ukuma kwenaliti kufana ne-inclusions noma isilikhi ngaphakathi kwe-crystal ku-axis angaphezu kweyodwa.

Chatoyancy

Kusuka igama lesiNgisi elithi "Chat" kusho ikati. I-Chatoyancy ibhekisela esimweni sokuvula nokuvala iso lekati. Singazibona ngeso lengqondo lika-chrysoberyl cat ngokucacile okukhulu. Amatshe ayigugu anamehlo aphethe ibhande elilodwa elibukhali, ngezinye izikhathi amaqembu amabili noma amathathu, agijima ngaphesheya kwe-cabochon surface. Amatshe amatshe e-cat ku-cabochon shape ahlukaniswa ngokugqamile kwengxoxo. Izinaliti eziqondile zesakhiwo se-crystal yetshe ziyi-perpendicular to the phenomena. Ngakho lapho ukukhanya kuwela kuso, iqembu elibukhali lingabonakala. Ezimweni ezinhle kunazo zonke, ama-catoyoyant angama-Chrysoberyl iso abukeka ehlukanisa indawo ibe yizingxenye ezimbili. Singabona ubisi nezinyosi uma kwenzeka ilitshe lihamba ngaphansi kokukhanya.

Iridescence

I-Iridescence nayo yaziwa nangokuthi i-goniochromism, into lapho ubuso bezinto ezibonakalayo kubonisa imibala eminingana njengengqikithi yokuguqulwa kokubuka. Kungabonakala kalula entanyeni yenjuba, amabhulabhisi ensipho, amaphiko wevemvane, umama wepearl njll Ukungahleleki kwezikhala zomhlaba nezindawo ezinkulu kuvumela ukukhanya kudlule futhi kubonakale emuva emuva kokuvela ezindaweni eziningi (ukuhlukanisa) okubangela umbala omningi okubonakalayo. Ehlanganiswe nokuphazanyiswa, umphumela uyamangalisa. Amapharele emvelo abonisa i-iridescence ehluke kakhulu kumbala womzimba wayo. Amaparele aseTahiti abonisa i-iridescence enkulu.

Dlala ngombala

Gem elimangalisayo elibizwa nge-opal libonisa umbala omuhle. Umlilo uvunguza kusuka ku-Lightening Ridge, e-Australia (okubonisa ukuguqulwa kweminye imibala ebonakalayo embala ngokumelene nabamnyama) kudume ngalesi simo. Nakuba lo mdlalo wombala wuhlobo lwe-iridescence, cishe bonke abathengisi begugu bayibiza ngokungalungile "umlilo". Umlilo yigama lesigodi, Ukuhlakazeka kokukhanya kukhonjiswe ngamatshe amatshe. Ngokuvamile kubonakala kudayimani. Kuyinto ukuhlakazeka okulula kokukhanya. Uma kwenzeka ama-opals awusakazeki futhi ngakho-ke, kunzima ukusebenzisa igama elithi "umlilo".

Ukushintsha kombala

Isibonelo esihle kakhulu sokushintsha kombala yi-alexandrite. Lezi ziyigugu namatshe zibonakala zihluke kakhulu ekukhanyeni kwe-incandescent uma kuqhathaniswa nokukhanya kwelanga lemvelo. Lokhu ikakhulukazi ngenxa yokwakheka kwamakhemikhali namagugu kanye nokwakheka okunamandla okukhethayo. I-alexandrite ivela eluhlaza emini futhi ibonakala ibomvu ekukhanyeni kwe-incandescent. Sapphire, futhi i-tourmaline, i-alexandrite namanye amatshe angenza i-aslo ibonise ushintsho lombala.

Labradorescence

I-Labradorescence uhlobo lwe-iridescence, kodwa luqondiswa kakhulu ngenxa ye-crystal twinning. Singayithola ekugatsheni kwe-labradorite.

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