da'irar canza launi

Sphene ko Titanite yana canza launi daga kore zuwa ja.

Saya mulkin halitta a cikin kantinmu

Ƙwallon mai canza launi, ko titanite, wani ma'adinan calcium maras silicate mai suna CaTiSiO5. Abubuwan da aka gano na baƙin ƙarfe da ƙazantar aluminium yawanci suna nan. Ƙarfin ƙasa da ba kasafai ba na kowa, gami da cerium da yttrium. Thorium wani bangare yana maye gurbin calcium da thorium.

Titanite

Sphene yana faruwa azaman translucent zuwa m ja-launin ruwan kasa, kazalika da launin toka, rawaya, kore ko ja monoclinic lu'ulu'u. Waɗannan lu'ulu'u galibi suna da alaƙa kuma galibi ana ninka su. Mallakar subadamantine, yana da ɗan haske mai ɗanɗano, titanite yana da taurin 5.5 da yanke mai rauni. Yawansa ya dogara da 3.52 da 3.54.

Ma'anar refractive titanite daga 1.885-1.990 zuwa 1.915-2.050 tare da karfi birefringence daga 0.105 zuwa 0.135, biaxial tabbatacce, a karkashin microscope wannan yana kaiwa ga wani halayyar babban taimako, wanda, a hade tare da saba rawaya-launin ruwan kasa launi, kazalika. a matsayin ɓangaren giciye mai siffar lu'u-lu'u, yana sauƙaƙe gano ma'adinai.

Ana bambanta samfurori masu haske ta hanyar trichroism mai karfi, kuma launuka uku da aka nuna sun dogara da launi na jiki. Sakamakon quenching na baƙin ƙarfe, dutse ba ya haskakawa a cikin hasken ultraviolet.

An gano wasu daga cikin titanite a matsayin metamictite sakamakon lalacewar tsari saboda lalatawar rediyoaktif na galibin mahimman abun ciki na thorium. Lokacin da aka duba shi a cikin sashe na bakin ciki tare da microscope na petrographic, za mu iya lura da pleochorism a cikin ma'adinan da ke kewaye da crystal titanite.

Spen shine tushen titanium dioxide TiO2 da ake amfani dashi a cikin pigments.

A matsayin dutse mai daraja, titanite yawanci inuwa ne na launin toka, amma yana iya zama launin ruwan kasa ko baki. Launi ya dogara da abun ciki na Fe: ƙananan abun ciki na Fe yana samar da launin kore da rawaya, yayin da babban abun ciki na Fe yana samar da launin ruwan kasa ko baki.

Zoning yana da mahimmanci ga titanites. Mai daraja don ingantaccen ikon watsawa na 0.051 a cikin kewayon B zuwa G, ya zarce lu'u-lu'u. Kayan kayan ado na Spen ba su da yawa, gemstone yana da ƙarancin inganci kuma yana da taushi.

Canjin launi

Kyakkyawan misali na canza launi shine sphene. Wadannan duwatsu masu daraja da duwatsu sun bambanta da haske a ƙarƙashin hasken wuta fiye da yadda suke yi a cikin hasken rana. Wannan ya fi yawa saboda sinadarai na duwatsun da kuma zaɓe mai ƙarfi.

Sphene yana bayyana kore a cikin hasken rana kuma ja a cikin hasken wuta. Sapphire, da tourmaline, alexandrite da sauran duwatsu, na iya canza launi.

Bidiyon canza launi

Halitta sphene na siyarwa a cikin shagon mu na gemstone

Muna yin kayan ado na bespoke tare da lu'ulu'u a cikin nau'i na zoben aure, sarƙoƙi, 'yan kunne, mundaye, pendants… Da fatan za a tuntuɓe mu don faɗar magana.