File:Meridianiite IR Spectra.jpg
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Summary
| Description |
English: Infrared absorption of meridianiite. Trace A was obtained below 0 °C, trace B was recorded after the sample was warmed and had incongruently melted to epsomite and solution, and trace C was recorded from a mixture containing epsomite (MgSO4·7H2O) with paraffin oil and a small amount of water prepared to simulate the product of the transition from MgSO4·11H2O to MgSO4·7H2O + 4H2O. As the sample was warmed, changes were observed in both the water band centered near 3400 cm–1, and the sulfate band centered at 1100 cm–1. In both regions, the new bands of trace B resemble those observed in the spectrum of MgSO4·7H2O with a small amount of water added (trace C). |
| Date | |
| Source | Meridianiite: A new mineral species observed on Earth and predicted to exist on Mars |
| Author | R.C. PETERSON, W. NELSON, B. MADU, AND H.F. SHURVELL |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:15, 11 February 2010 | | 799 × 426 (65 KB) | Ian Foster | {{Information |Description={{en|1=Infrared absorption of meridianiite. Trace A was obtained below 0 °C, trace B was recorded after the sample was warmed and had incongruently melted to epsomite and solution, and trace C was recorded from a mixture contai |
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