觀音土 [观－－]

Jyutping gun1 jam1 tou2
Pinyin guān yīn tǔ

Definitions (Wiktionary)
  1. noun
    kaolinite, especially when eaten in instances of geophagy during famine, etc.
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）