Tachylite and Icelandite Types and Facts
Types
Volcanic glass
Intermediate volcanic rock
Features
Available in Lots of Colors and Patterns, Clasts are smooth to touch
Generally rough to touch, High silica content, Is one of the oldest rock
Archaeological Significance
Types of Tachylite and Icelandite
Some rocks according to their use or texture are classified into different types. Know more about Tachylite Texture and Icelandite Texture. Types of Tachylite are Volcanic glass whereas the types of Icelandite are Intermediate volcanic rock.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. Tachylite and Icelandite 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. Tachylite and Icelandite were for creating petroglyphs.