Basanite and Pegmatite Types and Facts
Types
Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate, Used as a touchstone
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Archaeological Significance
Types of Basanite and Pegmatite
Some rocks according to their use or texture are classified into different types. Know more about Basanite Texture and Pegmatite Texture. Types of Basanite are Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite whereas the types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite.During historic times, some rocks depending on their hardness were used to create Pictographs and Petroglyphs. Rocks which are hard were generally not used. Pictographs are paintings or drawings that have been placed or created on the surface of rock. Basanite and Pegmatite were for creating pictographs. Petroglyph is an image which is carved into a rock. These are images created by removing part of a rock surface by incising, picking, carving or abrading, as a form of rock art. Basanite and Pegmatite were for creating petroglyphs.