• journal_title：American Mineralogist
• Contributor：Motoki Uehara ; Atsushi Yamazaki ; Sadao Tsutsumi
• Publisher：Mineralogical Society of America
• Date：1997-
• Format：text/html
• Language：en
• journal_abbrev：American Mineralogist
• issn：0003-004X
• volume：82
• issue：3-4
• firstpage：416
• section：Articles

Surite has been reported to be a mineral that intercalates cerussite-like materials in a smectite interlayer. However, the chemical analysis and infrared absorption spectra indicate that the interlayer material has the composition of Ca (sub 0.5) OH.2PbCO ₃ . A one-dimensional Fourier synthesis of electron density for acid-treated surite shows that the 2:1 layer of surite has the structure of a general smectite (the distance between the Si plane and the apical O atom plane is about 1.6 Aa). Moreover, the one-dimensional Fourier synthesis method showed that the crystal structure of surite is a 2:1 dioctahedral smectite interlayered with basic lead calcium carbonate.