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Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy

Chemical Geology

By:
, ,
DOI: 10.1016/0009-2541(90)90112-K

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Abstract

Laser-excited luminescence spectroscopy of a red-algal, biogenic calcite and a synthetic Mn-calcite can make the distinction between organic and trace-element activators of photoluminescence. Organic-activated photoluminescence in biogenic calcite is characterized by significant peak shifts and increasing intensity with shorter-wavelength excitation and by significant decreases in intensity after heating to ??? 400??C. In contrast, Mn-activated photoluminescence shows no peak shift, greatest intensity under green excitation and limited changes after heating. Examination of samples with a high-sensitivity spectrometer using several wavelengths of exciting light is necessary for identification of photoluminescence activators. ?? 1990.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Activators of photoluminescence in calcite: evidence from high-resolution, laser-excited luminescence spectroscopy
Series title:
Chemical Geology
DOI:
10.1016/0009-2541(90)90112-K
Volume
88
Issue:
1-2
Year Published:
1990
Language:
English
Publisher:
Elsevier
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Chemical Geology
First page:
183
Last page:
190
Number of Pages:
8