ruby crystal造句

Hydrothermally synthesized ruby crystal of guilin
桂林水热法合成红宝石晶体
Whenever a particularly beautiful ruby crystal was found , the ruler sent high dignitaries out to meet the precious gemstone and welcome it in appropriate style
每当发现壮丽珍贵的红宝石时，皇帝会派他的亲信去迎接宝石回宫。
Thus only very few ruby crystals were given the good conditions in which they could grow undisturbed to considerable sizes and crystallise to form perfect gemstones
只有极少数的结晶体能不受干扰地生成为无瑕疵的大颗粒红宝石。因此，
Originally , it was believed that these rubies would hardly prove suitable for use in jewellery , since untreated mong hsu ruby crystals actually display two colours : a purple to black core and a bright red periphery
的小城镇。原本蒙苏生产的红宝石是不够格当珠宝的，因为其未经处理的原石呈现两种颜色：紫至黑色的核心及鲜红色的边。
It's difficult to find ruby crystal in a sentence. 用ruby crystal造句挺难的