Hello Rick and List, Rick concluded (almost) correctly that thicker slices in TS can cross into higher order colors for pyroxene.
I wouldn't say they cross into higher order colors. Instead I would prefer this: they change color or maybe even better they assume a different color(ation). Let's take a look at the so-called Michel-Lévy Interference Color Chart and you know what I mean: Estatite in a 30µm (0.03 mm) TS: a light grayish color Estatite in a 50µm (0.05 mm) TS: orange-reddish color Pigeonite in a 30µm (0.03 mm) TS: greenish-blue Pigeonite in a 50µm (0.05 mm) TS: purplish-blue Augite in a 20µm (0.02 mm) TS: pinkish orange Augite in a 30µm (0.03 mm) TS: yellowish-green Augite in a 50µm (0.05 mm) TS: darker bluish-green Hypersthene in a 30µm (0.03 mm) TS: light orange Hypersthene in a 50µm (0.05 mm) TS: a vivid, dark blue Best from Germany, Bernd ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list

