rock crystal
水晶
quartz
https://source.unsplash.com/featured/?rock-crystal#.png
/suto3/google.iconrock crystal
/suto3/Google画像検索.iconrock crystal
/suto3/Google定義検索.icon rock crystal
/suto3/wikipedia.iconrock crystal
/suto3/weblio.icon rock crystal
/suto3/kotobank.icon rock crystal
/suto3/jisho.icon rock crystal