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.....à¿Å´ìÊ»ÒÃì (feldspar) à»ç¹¡ÅØèÁáÃè»ÃСͺËÔ¹·ÕèÁÕÊèǹ»ÃСͺËÅÑ¡·Ò§à¤ÁÕà»ç¹ ÍÐÅÙÁÔâ¹- «ÔÅÔࡵ (aluminosilicate) ¢Í§¸ÒµØâ¾á·Êà«ÕÂÁ (K) â«à´ÕÂÁ (Na) áÅÐá¤Åà«ÕÂÁ (Ca) áºè§ÍÍ¡à»ç¹ 2 ª¹Ô´ ¤×Í

1. áÍŤÒäÅà¿Å´ìÊ»ÒÃì (alkaline feldspars) áÃè¡ÅØèÁ¹ÕéÁÕÊèǹ»ÃСͺ·Ò§à¤ÁÕÃÐËÇèÒ§ KAlSi₃O₈ áÅÐ NaAlSi₃O₈ ã¹ÊÑ´ÊèǹµèÒ§æ ¡Ñ¹ áÃè·ÕèÊӤѭ㹡ÅØèÁ¹Õéä´éá¡è Anortho- clase, Sanidine, Orthoclase áÅÐ Adularia áÃè¡ÅØèÁ¹Õé¨Ðà»ç¹áÃè»ÃСͺËÔ¹ÍѤ¹Õ·Õè ÍسËÀÙÁÔµèÓËÃ×Íà¡Ô´à»ç¹ÊÒÂáÃèà¿Å´ìÊ»ÒÃìÃèÇÁ¡ÑºáÃè¤Ç͵«ìã¹ÊÒÂáÃèྡÁÒä·µì
2. á¾Å¨ÔâÍà¤ÅÊìà¿Å´ìÊ»ÒÃì (plagioclase feldspars) áÃè¡ÅØèÁ¹ÕéÁÕÊèǹ»ÃСͺ·Ò§à¤ÁÕ ÃÐËÇèÒ§ NaAlSi₃O₈ áÅÐ CaAlSi₃O₈ ã¹ÊÑ´Êèǹ Na µèÍ Ca µèÒ§æ ¡Ñ¹ áÃè·ÕèÊӤѭ㹠¡ÅØèÁ¹Õé ä´éá¡è Albite, Oligoclase, Andesine Labradorite Bytournite Anor- thite áÃè¡ÅØèÁ¹ÕéÁÑ¡¨Ðà¡Ô´à»ç¹áÃè»ÃСͺËÔ¹ÍѤ¹ÕÍسËÀÙÁÔµèÓ¶Ö§ÍسËÀÙÁÔÊÙ§ â´ÂÍسËÀÙÁÔ ÂÔè§ÊÙ§»ÃÔÁÒ³¢Í§ Na ÂÔ觹éÍÂŧ

......áÃèà¿Å´ìÊ»ÒÃì·Õèãªéã¹ÍصÊÒË¡ÃÃÁá¡éÇáÅÐà«ÃÒÁÔ¡ ä´éá¡è áÃ誹ԴáÍŤÒäÅà¿Å´Ê»ÒÃì «Öè§ä´é ¡Ó˹´»ÃÐàÀ·¢Í§áÃèà¿Å´ìÊ»ÒÃìµÒÁ¤Ø³ÊÁºÑµÔ¡ÒÃãªéà»ç¹Çѵ¶Ø´Ôºã¹ÍصÊÒË¡ÃÃÁ â´ÂᡵÒÁ ÊÑ´Êèǹ¢Í§ K₂O áÅÐ Na₂O ã¹áÃèà»ç¹ 3 »ÃÐàÀ· ¤×Í

1. â¾á·Êà«ÕÂÁà¿Å´ìÊ»ÒÃì ä´éá¡è áÃèà¿Å´ìÊ»ÒÃì·ÕèÁÕ»ÃÔÁÒ³ K₂O ã¹à¹×éÍáÃèÁÒ¡¡ÇèÒ 10 % ä´éá¡è Orthoclase Microcline, Sanidine áÅÐ Adularia
2. â«´Òà¿Å´ìÊ»ÒÃì ËÃ×Í â«à´ÕÂÁà¿Å´ìÊ»ÒÃì ä´éá¡è áÃèà¿Å´ìÊ»ÒÃì·ÕèÁÕ Na₂O ÁÒ¡¡ÇèÒ 7 % ä´éá¡è Albite
3. à¿Å´ì»ÒÃì¼ÊÁ ä´éá¡è áÃèà¿Å´ìÊ»ÒÃì·ÕèÁÕ»ÃÔÁÒ³ K₂O ã¹à¹×éÍáÃèµèÓ¡ÇèÒ 10 % áÅÐ Na₂O µèÓ¡ÇèÒ 7 %

......¡ÒáÓà¹Ô´¢Í§áËÅè§áÃèà¿Å´ìÊ»ÒÃìã¹»ÃÐà·Èä·Â ÍÂÙèà»ç¹ÊÒÂáÃè¨Ò¡¹éÓáÃèÃé͹ ã¹ÊÒ ྡÁÒä·µì (pegmatite) â´Âà¡Ô´ÃèÇÁ¡ÑºáÃè¤Ç͵«ì äºâÍä·µì ÁÑÊâ¤äǵì áÅÐáÃèÍ×è¹æ àÅ硹éÍ ÊÒÂáÃèྡÁÒä·µìÁÑ¡¨Ðà¡Ô´ÍÂÙèµÒÁÃͺ¹Í¡¢Í§ËÔ¹á¡Ã¹Ôµ ËÃ×Íà¡Ô´à»ç¹ÊÒÂÍÂÙèã¹ËÔ¹á¡Ã¹Ôµã¹ ÅѡɳÐà»ç¹ÊÒÂ

áËÅ觷ÕèµÑé§	»ÃÔÁÒ³ÊÓÃͧ	à¡Ã´à©ÅÕèÂ	àÍ¡ÊÒÃÍéÒ§ÍÔ§
áËÅè§ Í.ËÒ§´§ ¨.àªÕ§ãËÁè	3,000	7.3 % K2O	(2)/(-)
áËÅè§ Í.¨ÍÁ·Í§ ¨.àªÕ§ãËÁè	211,000	8.0-10.9% K2O	(2)/(-)
áËÅè§ Í.ÎÍ´ ¨.àªÕ§ãËÁè	17,000	5.6-10.3 % K2O	(2)/(-)
áËÅè§ Í.áÁèá¨èÁ ¨.àªÕ§ãËÁè	2,060,000	8.3-10.1 % K2O	(2)/(-)
áËÅè§ µ.·éͧ¿éÒ Í.ºéÒ¹µÒ¡ ¨.µÒ¡	437,500	9.0-13.4 % K2O	(2)/(-)
áËÅè§ µ.·Ø觡ÃÐàªÒÐ Í.ºéÒ¹µÒ¡ ¨.µÒ¡	542,500	10.2-12.0 % K2O	(2)/(-)
áËÅè§ µ.à¡ÒеÐàÀÒ Í.ºéÒ¹µÒ¡ ¨.µÒ¡	20,000	11 % K2O	(2)/(-)
áËÅè§ µ.ÂèÒ¹ÃÕ Í.ÊÒÁà§Ò ¨.µÒ¡	5,000	10.9 % K2O	(2)/(-)
áËÅè§ µ.Çѧ»ÃШº Í.àÁ×ͧ ¨.µÒ¡	3,570,000	8.0-10.7 % K2O	(2)/(-)
áËÅè§ µ.äÁé§ÒÁ Í.àÁ×ͧ ¨.µÒ¡	1,000,000	4.0 % K2O	(2)/(-)
áËÅè§ µ.áÁèÊÅÔ´ Í.ºéÒ¹µÒ¡ ¨.µÒ¡	100,000	9.1 % K2O	(2)/(-)
áËÅè§ µ.¹éÓÃÖÁ Í.àÁ×ͧ ¨.µÒ¡	1,100,000	5.4-7.0 % K2O	(2)/(-)
áËÅè§ µ.¡Í§¡ëÍ Í.ʺàÁ ¨.áÁèÎèͧÊ͹	185,000	11.0-13.0 % K2O	(2)/(-)
áËÅè§ µ.»èÒâ»è§ Í.ʺàÁ ¨.áÁèÎèͧÊ͹	51,500	-	(2)/(-)
áËÅè§ µ.áÁèµ×è¹ Í.ÅÕé ¨.ÅÓ¾Ù¹	20,000	8.5 % K2O	(2)/(-)
áËÅè§ µ.Êǹ¼Öé§ Í.Êǹ¼Öé§ ¨.ÃÒªºØÃÕ	1,636,000	-	(2)/(-)
ÃÇÁ (à¿Å´ìÊ»ÒÃì)	11,833,500	5.4-13.4 % K2O 4-10.7%Na2O	-