Of course, it is also great to read and learn all you can. That way you will know the difference in poor quality and high quality specimens of the same mineral. Many people would assume that a tree is worthless once it dies. But there is an order in nature. The tree goes on to be home to some and food or shelter for other living things.
Most people think only of the larger animals, like mammals and birds, when they think of wildlife.
And of course, tumbled, cut or natural stones are beautiful in jewelry. I've made windchimes from thin slabs of sliced and polished agate. I also enjoy thin slices of stone used with glass in leaded glass windows or boxes. When I visited the Grand Canyon, I'm sure I had the same response as almost everyone. It is so immense, it takes your breath away.