Amethyst
Ngwaahịa
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Amethyst bụ nkume ọmụmụ nke February ma na-egosipụta iguzosi ike n'ihe
Amethyst bụ sistemu kristal tripartite, kristal bụ columnar hexagonal, elu cylindrical transverse, enwere udi aka ekpe na udi aka nri, ejima-kristal bụ ihe a na-ahụkarị.Isi ike bụ 7. kristal na-enwekarị ihe mgbakwunye gas-mmiri mmiri na-adịghị mma ma ọ bụ nku.
