Spinel rough stone-baolong.com Spinel is a mineral composed of magnesium-aluminum oxide. Omdat dit elemente soos magnesium bevat, strykyster, sink, mangaan, ens., hulle kan in baie tipes verdeel word, soos aluminium spinel, yster spinel, sink spinel, mangaan spinel Spar, chroom spinel, ens. Omdat hulle verskillende elemente bevat, verskillende spinels kan verskillende kleure hê. Vir [...]
