Description:Geology Science Kit Mineral and Rock Collection includes - Wooden box of 30 metamorphic rock samplesMagmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.Each sample is identified on the collection index sheet & Samples measure approximately 3 cm in lengthPerfect for the young science enthusiasts and geological studySpecimens includes: Kimberlite, Biotite diopside rock, Almond-like andesite, Serpentinized peridotite, Calcium nephelinite, Gabbro, Diorite, Quartz diorite, Biotite granite, Trachyte, Obsidian, Biotite granite porphyry, Pumice, Orthophyre,Nepheline syenite, Latite, Vesicular rhyolite, Stomatal basalt, Snow obsidian, Porphyritic biotite granite, Chrysanthemum rhyolite, Epidotization granite, Basalt, Pegmatite, Olivine basalt, Pelelith, Feldspar, Volcanic lava, Lepidolite granite albitization Etc.Specification:Single lattice (L x W x H) approx 4.5 x 4 x 2.5cm/ 1.77 x 1.57 x 0.98 inchWooden Box (L x W x H) approx 27.5 x 25 x 5cm/ 10.82 x 9.84 x 1.96 inchPackage Includes:Box of 30pcs Rock & Mineral Collection