A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain
January 1, 1997
Sediments of playa Lake Salines, SE, Spain, contain a carbonate mineral characterized by X-ray diffraction peaks very similar to, but systematically shifted from those of pure magnesite. Analyses (SEM, IR and Raman spectroscopy, DTA, TGA, and ICP) indicate the mineral is a hydrous Ca-bearing magnesium carbonate with the chemical formula (Mg0.92,Ca0.08)CO3??3H2O. Thermal characteristics of the mineral are similar to those of other known hydrated magnesium carbonates. X-ray and electron diffraction data suggests a monoclinic system (P21/n space group) with unit-cell parameters of a = 6.063(6), b = 10.668(5), and c = 6.014(4) A?? and ?? = 107.28??.
Citation Information
| Publication Year | 1997 |
|---|---|
| Title | A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain |
| Authors | I. Queralt, R. Julia, F. Plana, J. L. Bischoff |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | American Mineralogist |
| Index ID | 70019794 |
| Record Source | USGS Publications Warehouse |