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| Basalts |
Basalt is a hard, volcanic rock ranging in shades of gray to black. It is used as road stone aggregate and building, and as a source of iron ore, sapphires, and copper. This strong rock lends its strength and endurance to people as they try to continue in difficult times or deal with traumatic changes. According to one source, it is best cleansed and energized during the full and new moons.