Why is "Extinction (optical mineralogy)" trending?
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Trend Analysis
- Ranking position: #
- Date: 2026-03-17 01:18:34
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
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Wikipedia Overview
Extinction is a term used in optical mineralogy and petrology, which describes when cross-polarized light dims, as viewed through a thin section of a mineral in a petrographic microscope. Isotropic minerals, opaque (metallic) minerals, and amorphous materials (glass) do not allow light transmission under cross-polarized light. Anisotropic minerals specifically will show one extinction for each 90 degrees of stage rotation.
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