Zamrud: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
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Baris 10:
* [http://www.mindat.org/min-1375.html Mindat Emerald Page] Mindat on Emerald with locality information
* [http://webmineral.com/data/Beryl.shtml Webmineral Beryl Page] Webmineral with crystallographic and mineralogical information
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