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ËÔ¹¿ÍÊ࿵ (phosphate rock) ËÁÒ¶֧ËÔ¹·ÕèÁÕÊèǹ»ÃСͺ¢Í§áÃè¿ÍÊ࿵¼ÊÁÍÂÙèà»ç¹¨Ó¹Ç¹ ÁÒ¡¾Í·Õè¨Ð¹Óä»ãªé»ÃÐ⪹ìä´éáÃè·ÕèÊӤѭ¢Í§ËÔ¹¿ÍÊ࿵ ¤×Í ÍоÒä·µì (apatite) ÁÕÊٵ÷ҧà¤ÁÕ Ca10(PO4)6(F, Cl, OH)2 ËÃ×Í Ca2(PO4)2 à¡Ô´ÍÂÙèã¹ÃÙ»ÅѡɳеèÒ§æ ¡Ñ¹ ÁÕËÅÒÂÊÕ àªè¹ ¢ÒÇ àËÅ×ͧ ¹éÓµÒÅ ´Ó ÍÒ¨ÁÕÅѡɳÐà¹×éÍá¹è¹ äÁèà»ç¹¼ÅÖ¡ËÃ×Íà»ç¹¼ÅÖ¡ ¢Öé¹ÍÂÙè¡Ñº¡ÒáÓà¹Ô´ (ÊÁºÙóì àÊ¡¸ÕÃÐ, 2517)

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