| SpectraBase Compound ID | KpcrbsxpROg |
|---|
Transmission Infrared (IR) Spectrum
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| SpectraBase Spectrum ID | 1uZV7acCZKt |
|---|---|
| Name | CORDIERITE - IOLITE - DICHROITE |
| Source of Sample | National Museum of Natural History, Smithsonian Institution, Washington, D.C. |
| Composition | (Mg,Fe^3+/)2 Al4Si5O18 |
| Copyright | Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved. |
| Crystal System | ORTHORHOMBIC |
| Impurities | 1450 CM^-1 |
| Occurrence | IN THERMALLY ALTERED ALUMINUM-RICH ROCKS, GRANITE, GNEISS, SCHIST, NORITE, PEGMATITE, AND ANDESITE. ASSOCIATED WITH QUARTZ, ANDALUSITE, SILLIMANITE, SPINEL, AND BIOTITE |
| Technique | KBr WAFER |