Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Mineralogica Sinica》 1985-03
Add to Favorite Get Latest Update

THE DISCOVERY OF HELIOPHYLLITE IN CHINA

Li Wanmao Chen Guoying (Ianzhou University, Ianzhou, Gansu)  
The first occurrence of heliophyllite in China is reported in this paper. It occurs in the oxidation zone in a lead-zinc deposit at Xitieshan, Qinghai Province. Associated minerals include mimetite, cerussite, calcite, etc. The mineral often occurs as coarsely foliated and granular aggregates. It is greenish yellow to yellowish with vitreous luster on cleavage planes or greasy luster on fracture surfaces. Translucent. Streak pale yellow white. Vickers hardness 95.6kg/mm~2.Cleavage [011] nearly perfect.Specific gravity 7.1417 (obs.), 7.36(calc.). Biaxial(-)with low birefringence. 2V 35—40℃. Chemical analysis gives PbO 80.21, CaO 0.05, MgO 0.007, (Fe,Mn)O0.601,ZnO 0.01, As_2O_3 12.28, Sb_2O_3 0.048, P_2O_5 0.037, Cl 8.05, total 99.45, corresponding to (Pb_(5.92)Fe_(0.14) Ca_(0.01))_(6.07) As_(2.03) O_(7.09) Cl_(3.91). X-ray diffraction data are: unit cell parameters a=10.7936, b=10.7663, c=25.5601; Z=8; orthorhombic; strongest lines are 3.65(7), 3.19(5), 2.845(10), 2.699(7), 2.06(5), 1.641(4), 1.585(5). IR absorption curve includes two principal absorption zones at 388—605 cm~(-1) and 700—842 cm~(-1), and one subordinate zone at 255—323 cm~(-1).
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 1 Hits
1 Chen Guoying;Li Wanmao;Sun Shurong;Mimetite Discovered in Xitieshan Mine,China and Its Mineralogical Study[J];Journal of Lanzhou University;1985-03
【Co-references】
Chinese Journal Full-text Database 1 Hits
1 Хо Чже-ли;ИССЛЕДОВАНИЕ ЗОНЫ ОКИСЛЕНИЯ СУЛЪФИДНЫХ МЕСТОРОЖДЕНИЙ ОДНОГО ОЛОВОРУДНОГО РАЙОНА КИТАЯ[J];Acta Geological Sinica;1964-03
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved