Amethyst Goethite

amethyst goethite

Prynu amethyst naturiol yn ein siop

Goethite amethyst meaning

Ar un adeg, fe wnaeth rhywun labelu'r cynhwysion hyn fel cacoxenite oherwydd tebygrwydd annelwig i'r mwyn hwnnw, ond nid yw amethyst â cacoxenitemay yn bodoli o gwbl.

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.

Mae cynhwysion goethite yn ffurfio bwndeli nodweddiadol iawn o nodwyddau melyn i frown sy'n edrych ychydig yn debyg i ysgub.

Tarddiad

Mae'r deunydd hwn yn nodweddiadol o'r amethyst sy'n dod o amgylch Ametista do Sul, a elwid gynt yn Sao Gabriel, Rio Grande do Sul, Brasil.

Goethite

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 polymorffau, which may be relevant to the conditions of the Earth’s interior.

Chwarts amethyst Goethite

Mae amethyst yn amrywiaeth porffor o gwarts ac mae arbelydru, amhureddau haearn ac mewn rhai achosion metelau pontio eraill, a phresenoldeb elfennau olrhain eraill, sy'n arwain at amnewidiadau dellt grisial cymhleth, mewn lliw. Mae caledwch y mwyn yr un peth â chwarts, gan ei wneud yn addas i'w ddefnyddio mewn gemwaith.

Mae amethyst i'w gael mewn arlliwiau cynradd o fioled pinc golau i borffor dwfn. Gall Amethyst arddangos un neu'r ddau arlliw eilaidd, coch a glas.

Of very variable intensity, the color of amethyst is often laid out in stripes parallel to the final faces of the crystal. One aspect in the art of lapidary involves correctly cutting the stone to place the color in a way that makes the tone of the finished gem homogeneous.

Often, the fact that sometimes only a thin surface layer of violet color is present in the stone or that the color is not homogeneous makes for a difficult cutting.

Amethyst Goethite o Brasil

Amethyst naturiol ar werth yn ein siop berl

Rydyn ni'n gwneud gemwaith amethyst wedi'i wneud yn arbennig fel modrwyau dyweddïo, mwclis, clustdlysau gre, breichledau, tlws crog ... Os gwelwch yn dda cysylltu â ni am ddyfynbris.