Smaragd
Smaragd on heksagonaalne, erk rohelise värvusega (smaragdroheline) mineraal, berülli (Be3Al2(SiO3)6) erim.
Smaragd on tuntud vääriskivina. Smaragdile iseloomulikke omadusi on kirjeldatud artiklis B
1 karaat smaragde on 525 kuni 1,125 dollarit. Hea kvaliteediga smaragdid tulevad Sambia, Brasiilia, Pakistan, Zimbabwe ja Venemaa kaevandustest. Smaragd on haruldasem ja kallim kui teemant.
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