basalt rocks , giants causeway, Ireland. RocksInMyHead™ is the World’s Greatest Rock, Prospecting & Outdoor Education Company. For gold prospecting, rockhounding, lapidary and geology tools, and jewelry making supplies, equipment, books, maps, great outdoor gear, plus lots of great rocks, minerals, gemstones, fossils, & meteorites, go to our website RocksInMyHead.com.
Rocks & Minerals may sound boring & pointless. But each individual sample tells a story about the Earth. Studying the character-istics tells us the journey magma or sediment has taken beneath our feet to reach the surface. Not care-ing about our planet's behavior's is pure ignorance.
The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.
For a person who sees the bigger picture, who isn’t afraid to think big, and whose imagination is as uncontainable as the universe, the DeskSpace is perhaps the greatest desk accessory ever. Made from polished precious minerals, the DeskSpace is your entire solar system (Sun excluded) on your desk, arranged in linear order, comprising every planet made from the appropriately selected gemstone.