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矿物亚种
Mineral subspecies
赤铁矿的集合体有各种形态,形成一些矿物亚种,即:
Aggregation of hematite has a variety of forms, the formation of some mineral subspecies, i.e.:
(1)镜铁矿 为具金属光泽的玫瑰花状或片状赤铁矿的集合体。
(1) aggregate with metal luster rosette or flaky hematite hematite.
(2)云母赤铁矿 具金属光泽的晶质细鳞状赤铁矿。
(2) the mica hematite metallic luster crystal thin squamous hematite.
(3)鲕状或肾状赤铁矿 形态呈鲕状或肾状的赤铁矿。
(3) the oolitic hematite or reniform shape oolitic hematite or kidney shaped.
赤铁矿是自然界中分布很广的铁矿物之一,可形成于各种地质作用,但以热液作用、沉积作用和区域变质作用为主。在氧化带里,赤铁矿可由褐铁矿或纤铁矿、针铁矿经脱水作用形成。但也可以变成针铁矿和水赤铁矿等。在还原条件下,赤铁矿可转变为磁铁矿,称假象磁铁矿。
Hematite is one of the wide distribution of iron minerals in nature, can be formed in various geological effects, but by hydrothermal activity, sedimentation and regional metamorphism. In the oxidation zone, hematite limonite or by the formation of lepidocrocite, goethite through dehydration. But also can be turned into hematite, goethite and water. Under reducing conditions can be transformed into magnetite, hematite, magnetite said.