Raman features of major feldspar minerals
Structure & chemistry of feldspar minerals:
| Characterizing feldspars, a major minerals formed in igneous systems, is important in determining rock petrogenesis. | |
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Can we distinguish different types of feldspars using only Raman spectra?
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| Vibrational mode assignment | distinguishing three end-members |
Structural and compositional variations in K-Na feldspars and Na-Ca feldspars:
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| Structural order/disorder reflects the forming temperature of K-feldspar. Compositional variation causes further structural distortion. | Structural order/disorder reflects the forming temperature of Na-Ca feldspar. Compositional variation causes further structural distortion. |
To distinguish seven types of feldspars:
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| Using Raman peaks in three characteristic regions of Raman spectra of feldspars, we can distinguish seven types of feldspars |
Reference: Freeman J., Wang A., Kuebler K. E., Haskin L. A., Raman Spectroscopic Characterization of the Feldspars – Implications for In Situ Surface Mineral Characterization in Planetary Exploration. Abstract #1676, 34th LPSc, 2003.
