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·ÃÒÂá¡éÇ (silica sand)

...¤ÇÒÁÃÙé·ÑèÇä»à¡ÕèÂǡѺ ·ÃÒÂá¡éÇ

,,, ·ÃÒ ËÁÒ¶֧ ¤Ç͵«ì (quartz) ·Õèà»ç¹àÁç´àÅç¡æ áÅÐÍÒ¨¨ÐÁÕáÃè¸ÒµØÍÂèÒ§Í×蹻л¹à»ç¹Êèǹ¹éÍ àªè¹ à¿Å´ìÊ»ÒÃì (feldspar) äÁ¡Ò (mica) áÅÐàËÅç¡ÍÍ¡ä«´ì (iron oxide) à»ç¹µé¹ ·ÃÒ·ÕèÁÕÅѡɳРà»ç¹ÊÕ´Ó à¹×èͧ¨Ò¡ÁÕ»ÃÔÁÒ³¢Í§áÃèÊÕ¤ÅéÓ (dark minerals) »¹ÍÂÙèÁÒ¡ ÊÓËÃѺ·ÃÒÂá¡éǹÑé¹à»ç¹Çѵ¶Ø´Ôº ·ÕèÊӤѭã¹ÍصÊÒË¡ÃÃÁà¤Ã×èͧá¡éÇáÅÐà¤Ã×èͧ¡ÃШ¡

.....â´Â·ÑèÇä»·ÃÒÂá¡éÇà»ç¹·ÃÒÂÊÕ¢ÒÇ ÊÐÍÒ´ áÅÐÁÕ»ÃÔÁÒ³«ÔÅÔ¡éÒ (SiO2) ÊÙ§¡ÇèÒ 95 % ÁÅ·Ô¹·Õ辺 àÊÁÍæ ã¹·ÃÒÂá¡éÇ ¤×Í àËÅç¡ áÃè´Ô¹ áÅÐÍÔ¹·ÃÕÂìÊÒà «Ö觨ÐÁռŷÓãËéá¡éÇäÁèâ»Ãè§áÅÐÊÙ­àÊÕ¤ÇÒÁá¢ç§ ÊèǹÁÅ·Ô¹µéͧËéÒÁ¹Ñé¹ ä´éá¡è Fe2O3 ¤ÇÃÁÕäÁèà¡Ô¹ 1 % Cr2O3 ¤ÇÃÁÕ¹éÍ¡ÇèÒ 0.00006 % Al2O3 ¤ÇÃÁÕ¹éÍ¡ÇèÒ 4 % ¡ÒÃËÅÍÁ·ÃÒÂá¡éǤÇÃãªé·ÃÒ·ÕèÁÕ¢¹Ò´ã¡Åéà¤Õ§¡Ñ¹»ÃÐÁÒ³ <= 20 àÁª áÅÐ >=120 àÁª ÍÂèÒ§äáçµÒÁÍÒ¨¨ÐÂÍÁãËéÁÕ¢¹Ò´¶Ö§ 150 àÁª ä´éºéÒ§àÅ硹éÍ à¾ÃÒÐÊÒ÷ÕèäÁèºÃÔÊØ·¸ÔìÁÑ¡¨Ð»¹ÍÂÙèÁÒ¡ ã¹·ÃÒ·ÕèÁÕ¢¹Ò´àÅç¡

....»ÃÐâª¹ì ·ÃÒÂá¡éÇà»ç¹·ÃÒ·Õèãªéã¹ÍصÊÒË¡ÃÃÁ àªè¹ ÍصÊÒË¡ÃÃÁá¡éÇ à«ÃÒÁÔ¡ á·è¹¾ÔÁ¾ì ËÃ×ÍẺËÅèÍ áÅÐãªéã¹à¤Ã×èͧ¡Ãͧ à»ç¹µé¹

áËÅ觷ÕèµÑé§

»ÃÔÁÒ³ÊÓÃͧ

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àÍ¡ÊÒÃÍéÒ§ÍÔ§ (àÅèÁ)/(˹éÒ)

áËÅè§ µ.«Ò¡¼§ Í.á¡Å§ ¨.ÃÐÂͧ

>1,500,000

99.5% SiO2

(31)/(31)

áËÅ觺éÒ¹áËÅÁ¡ÅÑ´ à¢éÒÅéÒ¹ Í.àÁ×ͧ áÅкéÒ¹äÁéÃÙ´ Í.¤ÅͧãË­è ¨.µÃÒ´

1,700,000

99.4% SiO2

(31)/(35)

áËÅ觺éÒ¹´Í¹µÐà¤Õ¹ Í.»Ð·ÔÇ ¨.ªØÁ¾Ã

1,300,000

99.0 % SiO2

(31)/(36)

áËÅ觺éÒ¹·Øè§ÁТÒÁ µ.»Ò¡¹éÓ Í.àÁ×ͧ ¨.ªØÁ¾Ã

1,000,000

99.2% SiO2

(31)/(38)

áËÅ觺éÒ¹»Ò¡¹éÓµÐâ¡ ¡Ôè§Í.»Ò¡¹éÓµÐâ¡ ¨.ªØÁ¾Ã

1,700,000

99.0% SiO2

(31)/(41)

áËÅ觺éÒ¹äÁé¢ÒÇ Í.¶ÅÒ§ ¨.ÀÙà¡çµ

3,400,000

99.2% SiO2

(31)/(12)

áËÅ觺éÒ¹»èÒ¤ÅÍ¡ Í.¶ÅÒ§ ¨.ÀÙà¡çµ

25,000

97.9% SiO2

(31)/(43)

áËÅè§à¡ÒйҤÒãË­è Í.¶ÅÒ§ ¨.ÀÙà¡çµ

17,000

94.6% SiO2

(31)/(43)

áËÅ觺éÒ¹µÅÒ´µé¹¾ÐÂÍÁ Í.ÊԪŠ¨.¹¤ÃÈÃÕ¸ÃÃÁÃÒª

170,000

99.5% SiO2

(31)/(47)

áËÅ觺éÒ¹·Øè§¤Ò µ.·Ø觻Ãѧ Í.ÊԪŠ¨.¹¤ÃÈÃÕ¸ÃÃÁÃÒª

204,000

99.3% SiO2

(31)/(49)

áËÅ觺éÒ¹äÁè½Ò´ µ.äÁé½Ò´ Í.ÊÔà¡Ò ¨.µÃѧ

200,000

99.4% SiO2

(31)/(45)

áËÅè§áËÅÁµØâΠà¡ÒÐÅÔº§ µ.¡Ñ¹µÑ§ ¨.µÃѧ

68,000

99.1% SiO2

(31)/(46)

áËÅ觺éÒ¹¤ÅͧÊоҹ¢éÒ§ (ºéÒ¹ÁоÃéÒÇ) à¡ÒÐÅÔº§ µ.¡Ñ¹µÑ¹ Í.¡Ñ¹µÑ§ ¨.µÃѧ

170,000

99.5% SiO2

(31)/(46)

áËÅè§Í.àÁ×ͧ áÅÐÍ.¨Ð¹Ð ¨.ʧ¢ÅÒ

9,000,000

98.9% SiO2

(31)/(51)

áËÅ觺éÒ¹âµêеÕൠµ.ºÒÅÍ Í.ÂÐËÃÔè§ ¨.»ÑµµÒ¹Õ

240,000

98.3% SiO2

(31)/(51)

ÃÇÁ (·ÃÒÂá¡éÇ)

20,694,000

94-99% SiO2

-

»ÃÐÁÒ³¡ÒûÃÔÁÒ³ÊÓÃͧ¢Í§·ÃÒÂá¡éÇ ·ÑèÇ»ÃÐà·È

100,000,000

95% SiO2

-

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