Kimberlite and Pegmatite Types and Facts
Types
Basaltic Kimberlites and Micaceous Kimberlites
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Features
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Archaeological Significance
Types of Kimberlite and Pegmatite
Some rocks according to their use or texture are classified into different types. Know more about Kimberlite Texture and Pegmatite Texture. Types of Kimberlite are Basaltic Kimberlites and Micaceous Kimberlites 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. Kimberlite 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. Kimberlite and Pegmatite were for creating petroglyphs.