Largest database on rocks and minerals
Mindat.org is a great website to lose time if you’re an amateur rockhound. It is a nonprofit project by The Hudson Institute of Mineralogy, and the “leading authority on minerals and their localities, deposits, and mines worldwide.” There’s a lot of ways to search for and discover new rocks, including a cool color search. If you’re more of a “pro” than an amateur you can contribute your own photos and data. My husband likes to bring home rocks from river beds and hikes and I gravitate more toward crystals, but it’s one thing to admire the natural beauty and wonder of our earth’s materials and another to learn about it’s importance and use in our world. — CD