Pegmatite and Flint Types and Facts
Types
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Chert and Jasper
Features
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
Archaeological Significance
Types of Pegmatite and Flint
Some rocks according to their use or texture are classified into different types. Know more about Pegmatite Texture and Flint Texture. Types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite whereas the types of Flint are Chert and Jasper.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. Pegmatite and Flint 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. Pegmatite and Flint were for creating petroglyphs.