ชื่อโกเมน, โกเมน, evolved from the Latin Granatus, because its crystals are mostly granular, similar to mature pomegranate seeds. Garnet is a single-refraction gemstone of equiaxed crystal system, with hardness between 6.5 และ 7.5, ความเหนียวที่ดี, silicate minerals containing different metal elements, garnets are divided into six categories due to the different metal […]
