Whats the difference between a mineral, rock, stone, and a crystal?
Crystals often refers to clear quartz formations, yet they’re also the miniscule forms of chemical elements. Minerals are chemical elements with a separate constitution, e.g., salt, sulphur. Rocks and stones are a combination of minerals formed from a unique mix of elements and environmental circumstances. Gemstones are termed semi-precious or precious based upon their color, availability, and mining requirements. The four most precious stones are emerald, diamond, ruby and sapphire. ◊ Which crystal corresponds with which angel?
