a cube whose corners have been truncated by octahedron faces.crystal forms of the tesseral system ,known as the cubic or isometric crystal system - 紫水晶 幅插畫檔、美工圖案、卡通及圖標鹽 - 礦物質, 礦物質
minerals and rocks ,spherulitic structure in glassy stone of a obsidian, semi-polished (lipari, sicily, italy) - 紫水晶 幅插畫檔、美工圖案、卡通及圖標岩石
minerals and rocks ,grown crystals (veining grading) of galena and siderite (heudorf, lower saxony, germany) - 紫水晶 幅插畫檔、美工圖案、卡通及圖標紅寶石, 鑽石, 圖畫 - 藝術品
minerals and rocks , stibnite antimonite (arnsberg, north rhine-westphalia, germany) - 紫水晶 幅插畫檔、美工圖案、卡通及圖標礦物質