The contents of organic material, limonite and manganese hydroxides influence the variation of ore element . 有机物、褐铁矿和氧化锰的含量影响着成矿元素含量的变异。
2.
Sulfidizing flotation tests of cerusite and limonite 褐铁矿的硫化浮选试验研究
3.
Study on the beneficiation technology of a limonite ore in yunnan 河南方城金红石矿选矿试验研究
4.
Reverse flotation experiments on a limonite with anionic and cationic collectors 阴阳离子捕收剂反浮选褐铁矿试验研究
5.
Industrialization of research achievements on mineral processing of siderite and limonite : problems and countermeasures 某难选硫化铜矿浮选新工艺研究
6.
The colloid adhered the surface of jadeite , formed limonite after dehydrating and crystal . then the secondary color came into being owing to the limonite subsidence . the iron ion which are needed for the secondary color mainly came from outside 对于硬玉所占比例比较大的翡翠，翡翠次生色形成所需的铁主要来自于外界，对于含有富铁矿物的硬玉，既有自身析出的铁，又有来自外界的铁。
7.
By infrared spectrum study , the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite , and the hematite is another colorating mineral in the red jadeite . the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water . the iron ion came from the effloresced and eroded rocks , and formed fe ( oh ) 3 colloid reacted with the surface water 周围矿床的风化蚀变为表生水提供了铁质，形成弱酸性的含fe ( oh ) _ 3胶体的水溶液，表生水流经翡翠矿石时， fe ( oh ) _ 3胶体附着在岩石的表面，经过脱水结晶和吸附，形成褐铁矿胶体，褐铁矿胶体沿裂隙或松散的矿物颗粒进入翡翠岩石中，逐渐累积沉淀，形成次生色层。
8.
The metallic mineral has very few content ( 1 % - 2 % ) , the mineral of ore is mainly of pyrite , chalcopyrite , limonite , aurum and electrum etc . the gangue mineral is composed of chalcedony , micro grained quartz , calsite , sericite , adularia , aragonite , chlorite , laumontite , pyrophyuite , kaolinite and so on , which show the typical mineral assemblage of epithermal 矿石为典型少硫化物型，金属矿物含量极少( 1 - 2 ) ，主要有黄铁矿、黄铜矿、褐铁矿和自然金、银金矿等。主要脉石矿物有玉髓、微粒石英以及方解石、绢云母、冰长石、文石、绿泥石、浊沸石、叶腊石、高岭石等，属典型低温矿物组合。
9.
Huangmei has a rich reserve of underground minerals , 15 sorts are proven to have exploitation value , of which , limonite and siderite have a reserve of 58 million tons , the tenor is around 45 % , being concentrated ; quartz is of 100 million tons ; gypsum mine is 270 million tons ; barite is 500 , 000 tons and silex of 10 million tons ; porcelain clay , limestone , shale and granite are extensively distributed and of large reserve 黄梅地下矿产丰富,已探明有开采价值的矿产资源15种,其中褐铁矿、菱铁矿储量5800万吨,品位45 %左右,分布集中；石英矿1亿吨；石膏矿2 . 7亿吨；重晶石50万吨；硅石1000万吨；瓷土、石灰石、页岩石、花岗岩分布广、储量大。
