freezes into tiny crystals called diamond dust. 会直接凝结成冰晶 俗称钻石尘
It was Lechuguilla's gypsum crystals 龙舌兰洞的石膏结晶群
like these 5-metre cones, frosted with the most delicate crystals. 例如这些5米高的石锥 上面布满了雪霜一样的松脆结晶
Many of these crystals were made of gypsum, 许多结晶都是由石膏组成
The walls were covered with the most delicate and fragile crystals. 石壁上布满了光洁美丽的脆弱结晶