RHODONITE

Named after the Greek word for rose, rhodon.  Rhodonite is associated with black maganese minerals and pyrite, while the only other mineral to confuse with it, Rhodocrosite is streaked with white minerals such as calcite.  Rhodonite does not react to acids like Rhodocrosite either.  Rhodonite is the Massachusetts state stone.

• Hardness: 5.5-6.5
• Ural Mountains, Russia, Broken Hill, Australia, Langban, Sweden, Menas Gerais, Brazil, Massachusetts and New Jersey