A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain
American Mineralogist
By: I. Queralt, R. Julia, F. Plana, and J. L. Bischoff
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Abstract
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??.
Suggested Citation
Queralt, I., Julia, R., Plana, F., and Bischoff, J.L., 1997, A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain: American Mineralogist, v. 82, no. 7-8, p. 812-819.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain |
| Series title | American Mineralogist |
| Volume | 82 |
| Issue | 7-8 |
| Year Published | 1997 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | American Mineralogist |
| First page | 812 |
| Last page | 819 |