Cov minerals chromium nitride thiab chromium sulfide tsuas yog pom nyob rau hauv meteorites. Chromium cov zaub mov nrog cov nqi lag luam tag nrho yog cov chromium spinel minerals. Chromium minerals nrog cov nqi lag luam muaj ntau ntawm lawv:
1. Chromite
Chromite yog nruab nrab ntawm ferrous chromite thiab magnesium chromite. Qee tus neeg feem ntau xa mus rau ferrous chromite thiab magnesium chromite li chromite. Chromite yog equiaxed crystal system. Cov muaju yog nyob rau hauv daim ntawv ntawm nplua octahedrons, feem ntau nyob rau hauv daim ntawv ntawm granular thiab ntom thaiv aggregates. Cov xim yog xim dub, nrog xim av streaks, semi-metallic luster, hardness 5.5, tshwj xeeb lub ntiajteb txawj nqus 4.2 ~ 4.8, thiab tsis muaj zog hlau nplaum. Chromite yog ib qho ntxhia ntawm magmatic keeb kwm thiab yog tsim nyob rau hauv ultrabasic pob zeb. Thaum cov pob zeb ore-cov kabmob raug puas tsuaj los ntawm huab cua, chromite feem ntau kis mus rau hauv qhov chaw tso nyiaj. Chromite yog cov khoom siv tseem ceeb hauv cov khoom siv chromium refining, thiab cov khoom siv tsis zoo hauv cov hlau tuaj yeem siv los ua cov ntaub ntawv qib siab refractory.
2. Chromium-nplua nuj spar kuj hu ua chromite spinel los yog aluminochromite. Nws morphology, lub cev muaj zog, keeb kwm, tshwm sim thiab siv yog tib yam li cov chromite.
3. Cov morphology, lub cev muaj zog, lub hauv paus chiv keeb, tshwm sim thiab siv cov tawv chromium spinel kuj zoo ib yam li cov chromite.
