Hoé-chio̍h
(Tùi Flint choán--lâi)
Hoé-chio̍h (flint) sī 1 chióng tēng-tēng ê tui-chek-giâm (sedimentary rock), goā-kháu-bīn sêng po-lê, sêng-hūn sī Si-sng-iâm (silicate). Hoé-chio̍h sek-chúi toā-hūn sī o͘, nâ, niáu-chhí-á-sek ia̍h laū-tê-sek. Tī chio̍h-chi (chalk) ia̍h chio̍h-hoe-giâm (limestone) tiāⁿ ē-tit chhoē tio̍h hoé-chio̍h ê kiat-hu̍t (nodule).
Hoé-chio̍h tiāⁿ the̍h lâi khiat-hoé ēng. Chio̍h-khì Sî-tāi ê chio̍h-khì toā-hūn sī ēng hoé-chio̍h chò--ê.
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