Описание
Selected rocks and minerals are ground and polished to a thickness of 20 – 30 ?m. The preparations are mounted with Canada balsam on slides of 45×30 mm. In order to identify forms, colours, refractions and fossil inclusions, the slides can be observed with any normal microscope in transmitting light. Additional information is obtained by using microscopes with polarized-light equipment.
10 Microscope Slides (1i). Andesite, (2i). Trachyte, (3i). Thyolite, (4i). Diorite, (5i). Microgranite, (6i). Chalk, (7i). Limestone oolithic, (8i). Millstone, (9i). Coal, (10i). Schist.
1012495 — Rocks and Minerals, Basic Set no. I
