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  #1  
Old 13th August 2011
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Default Dari Manakah Asal Batu Permata?

Seperti namanya, permata adalah sejenis batu yang terdiri daripada karbon pekat. Ia terbentuk jauh di dalam bumi yang mengalami tekanan kuat menyebabkan atom-atom karbon membentuk kristal.

Batu berbentuk kristal itu terkeluar ke permukaan bumi akibat letusan gunung berapi dan ia boleh ditemui di dalam batu-batu gunung berapi yang dikenali sebagai �kimberlite� dan �lamproite�.

Batu permata disifatkan oleh masyarakat dunia sebagai sangat berharga kerana ia adalah batu yang paling keras di bumi ini.

Pada abad ke-16 manusia tidak pernah terfikir bahawa batu permata mempunyai kilauan dan cahaya yang cantik.

Apabila saintis menyedari kegunaan cahaya barulah mereka mengetahui bahawa batu permata mempunyai kilauan dan cahaya yang terang.

Kelajuan cahaya dalam batu permata ialah 186,000 sesaat tetapi ia akan bergerak perlahan kira-kira 80,000 batu sesaat apabila melalui rintangan.

Cahaya batu permata boleh terbias dan terpantul serta terpecah menghasilkan warna-warna pelangi, yang menyebabkan ia berkilauan.

Bagaimanapun kilauan batu permata sebenarnya bergantung kepada cara ia dipotong atau dicanai.

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  #2  
Old 14th August 2011
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katanya seeh kebanyakan ada d afrika ndan

menurut berita seeh gitu
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Old 14th August 2011
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tuh dah dijawab sama atas ane.
dia orang afrika jg tuh.
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Old 14th August 2011
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di indonesia ada ga gan??
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Old 14th August 2011
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wuih2 ,tp itu cara motongnya jg pengaruh yah buat efek cahaya
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Old 5th November 2011
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baru tau ndan
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Old 5th November 2011
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batu permata termasuk batuan beku kayaknya...
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Old 5th November 2011
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baru tau ndan...
mantaf ndan...
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Old 5th November 2011
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nice info ndan,,,bagus2 ya ndan
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Old 5th November 2011
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kata tukul sih hasil kristalisasi keringat
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