Greywacke and Obsidian Uses

Uses of Greywacke and Obsidian

There are many uses of Greywacke and Obsidian based on their unique properties. All rocks due to their properties, texture, color etc. have variety of uses. Know all about Greywacke and Obsidian and their uses in industries and architecture in the upcoming sections.

• Commercial uses of Greywacke: as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.
• Commercial uses of Obsidian: creating artwork, mirror, used in aquariums.