31 Microscope Slides size 30 x 45 mm2, without box.
Contents: altered granite, andesite, basalt, basalt with olivin, basalt with phenocryst and white feldspat, picrit basalt, tholeiitic basalt, granodiorite, pillow lava, dacite, diorite, diorite quartzique, dolerite, doreite, gabbro, granite, two-micas granite, porphyry granite, kimberlite, laurvikite, microdiorite, microgranite, peridotite, phonolite, rhyolite, red rhyolite, syenite, tephrite, trachyandesite, trachyte, volcanic breccia