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一.世界最大的金刚石金刚石在地球上产出稀少,大的晶体更为罕见。金刚石重量以“克拉”作计量单位,1克拉(ct)=0.2克(g)。世界上最大的一块金刚石,是1905年1月25日在南非普列米尔矿山发现,以该矿总裁托马斯.M.库里南爵士命名为“库里南”。它不是完整晶体,具三个自然晶面和一个劈开面,体积约5×6.5×10cm~3,重量约3106ct。世界第二大金刚石是1978年在南美洲巴西米纳斯吉拉斯洲
One. The world’s largest diamond diamond produced sparsely on Earth, large crystals are more rare. Diamond weight in “carats” as a unit of measurement, 1 ct = 0.2 grams (g). The world’s largest piece of diamond, discovered on January 25, 1905 at the Premilium mine in South Africa, named Sir Curranan Sir Thomas M. Curryan the president of the mine. It is not a complete crystal, with three natural crystal planes and a cleavage plane, with a volume of about 5 × 6.5 × 10cm ~ 3 and a weight of about 3106ct. The world’s second-largest diamond was in South America in Minas Gerais, Brazil, in 1978