a precious stone consisting of a deep red vitreous silicate mineral 石榴石 ■(Mineralogy)any of a class of silicate minerals including this, which belong to the cubic system and have the general chemical formula A3B2(SiO4)3 (A and B being respectively divalent and trivalent metals) (矿)含石榴石的硅酸盐矿物
语源
Middle English: probably via Middle Dutch from Old French grenat, from medieval Latin granatus, perhaps from granatum (see pomegranate), because the garnet is similar in colour to the pulp of the fruit