Thenga i-amethyst yendalo kwivenkile yethu
Umntu othile ukhe wathi i-catholicenite njenge cacoxenite ngenxa yokufana ngokucacileyo kuleyo mineral, kodwa i-amethyst ene-cacoxenitemay ayikho kwaphela.
It has been historically called cacoxenite in Brazil. It was not till much later that an empirical study was done and by that time it was too late to change the marketing machine and people’s habit of calling it cacoxenite.
I-Goethite inclusions zenza imixokelelwane etyheli eqhele kakhulu etyheli kuye ngenaliti emdaka ekhangeleka ngathi incinci.
Ezi zixhobo ziqhelekile kwi-amethyst evela kwi-Ametista do Sul, eyayibizwa ngokuba yi-Sao Gabriel, iRio Grande do Sul, eBrazil.
Goethite is an iron oxyhydroxide containing ferric iron. It is the main component of rust and bog iron ore. Goethite’s hardness ranges from 5.0 to 5.5 on the Mohs Scale, and its specific gravity varies from 3.3 to 4.3. The mineral forms prismatic needle-like crystals, needle iron ore, but is more typically massive.
Feroxyhyte and lepidocrocite are both polymorphs of the iron oxyhydroxide FeO(OH) which are stable at the pressure and temperature conditions of the Earth’s surface. Although they have the same chemical formula as goethite, their different crystalline structures make them distinct minerals.
Additionally, goethite has several high-pressure and high-temperature polymorphs, which may be relevant to the conditions of the Earth’s interior.
I-Goethite amethyst quartz
I-Amethyst luhlobo lwe-quartz emfusa kwaye idala umbala wayo o-violet kumngxunya, ukungcola kwesinyithi kwaye kwezinye iimeko ezinye izinto zentsimbi, kunye nobukho bezinye izinto ezilandelwayo, ezikhokelela ekungeneni kwe-crystal lattice. Ubulukhuni bezimbiwa ziyafana ne-quartz, ngaloo ndlela zisenza ukuba zilungele ukusetyenziswa kubucwebe.
I-Amethyst yenzeka kwii-hues eziphambili ukusuka kwi-pinkish ye-pinki ebomvu kwaye ibe yimfusa. I-Amethyst inokubonakalisa enye okanye zombini ii-hues zesekondari, zibomvu kunye nohlaza okwesibhakabhaka.
Yobunzulu Womendo kakhulu, umbala neametiste kudla kubekiwe ngemivumbo enxuseneyo ubuso lokugqibela yikristale. Omnye umba kwi ubugcisa lapidary nokusikwa ngokuchanekileyo ilitye ukufaka umbala ngendlela eyenza ithowuni ye gem ogqityiweyo bomzi. Ngokufuthi, into yokuba ngamanye amaxesha kuphela maleko ubhityileyo ngemisonto umbala kusegazini ilitye okanye umbala andivoti afanayo ukulungiselela neemela enzima.
U-Goethite amethyst ovela eBrazil