https://optical.minpet.org/introduction-identifying-minerals-in-thin-sectin/2024-07-24T16:02:45+00:00https://optical.minpet.org/2-quartz-feldspars-and-other-framework-silicates/2024-07-23T17:57:09+00:00https://optical.minpet.org/2026-07-09T22:34:04+00:00https://optical.minpet.org/3-micas-and-other-sheet-silicates/2024-07-23T19:02:11+00:00https://optical.minpet.org/4-pyroxenes-and-pyroxenoids/2024-07-26T20:26:22+00:00https://optical.minpet.org/5-amphiboles/2024-07-26T20:31:29+00:00https://optical.minpet.org/6-ring-silicates/2024-07-25T13:47:18+00:00https://optical.minpet.org/7-garnet-olivine-and-other-isolated-tetrahedral-silicates/2024-07-23T22:37:56+00:00https://optical.minpet.org/8-paired-tetrahedral-silicates-and-related-minerals/2024-07-24T01:56:39+00:00https://optical.minpet.org/13-sulfides/2024-04-26T02:50:42+00:00https://optical.minpet.org/12-metallic-oxides/2024-07-24T02:41:57+00:00https://optical.minpet.org/9-carbonates/2024-07-24T02:09:46+00:00https://optical.minpet.org/10-sulfates/2024-07-24T02:12:23+00:00https://optical.minpet.org/14-other-graphite-apatite-fluorite/2024-07-24T02:50:10+00:00https://optical.minpet.org/11-non-metallic-oxides/2024-07-24T02:23:35+00:00https://optical.minpet.org/15-unknown-mineral-search-routine/2024-07-15T21:44:01+00:00https://optical.minpet.org/developmental-page/2025-06-23T22:19:44+00:00