Study on strengthen and leadless high grade household fine porcelain useing magnesian body the second generation household fine porcelain of talcose texture 镁质高强无铅高级日用细瓷的研究第二代滑石质日用细瓷的研究
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( 3 ) jianchaling ultrabasic intrusion belongs to magnesian ultrabasic simple rock - body , close related with yangzi block in space , which formed in the interim of proterozoic active tectonic zone to phanerozoic orgenic belt ( 3 )证实煎茶岭超基性岩体为含铁的镁质超基性单式岩体，空间上与扬子地块关系密切，形成于新元古代由元古宙活动带向显生宙造山带过渡时期。
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Environmental mineral fibre mainly points crude minerals like sepiolite and palygorskite species layer - chained magnesian silicate , which have excellent physical - chemical properties and are rare environmental mineral materials in the world nowadays because of the rigor of their form conditions . the single crystals of palygorskite are mostly acicular and fibrous , 30 - 80nm of crystal diameter , and are typical crude nano - rank materials 环境矿物纤维主要指以海泡石、坡缕石类层链状镁质硅酸盐为主的天然矿物，具有优良的物化性能，由于其形成条件苛刻，为世界性稀缺的环境矿物材料，其单晶多为针状、纤维状，晶体直径为30 - 80nm ，属典型的天然纳米级材料。
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