Calcite CL/SEM measurement, e<sup>-</sup> beam, Habermann <i>et al.</i> 1999

Calcite CL/SEM measurement, e^- beam, Habermann et al. 1999

Reference	Habermann et al. 1999 Habermann D., Meijer J., Neuser R. D., Richter D. K., Rolfs C. & Stephan A. (1999). Micro-PIXE and quantitative cathodoluminescence spectroscopy: Combined high resolution trace element analyses in minerals. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 150(1-4), 470-477. DOI: https://doi.org/10.1016/S0168-583x(98)00926-4
Material	Calcite [ CaCO₃ ] Fluorescence and birefringence of 445 nm laser in calcite crystal © Photo by Jan Pavelka (via Wikimedia Commons), CC-BY-SA 4.0
Specimen temperature	Ambient
Technique	Cathodoluminescence (CL), using a Scanning Electron Microscope (SEM)
Probe	Electron beam
Lines	Dy³⁺ 500 nm (100%), 580 nm (100%), 680 nm (100%), 760 nm (100%), Sm³⁺ 565 nm, 570 nm, 600 nm, 610 nm, 710 nm, 650 nm (100%)

Nominal composition of Calcite [ CaCO₃ ].
Element	Atoms	At%	Wt%
Ca	1	20	40
C	1	20	12
O	3	60	48