Crystals. They're ~all the rage~ lately and they're popping up everywhere: in jewelry, decor, meditation, yoga, anything "boho" and all over your spiritual-type friends. De Agostini / Getty Images But you might have some questions. For starters, what are they and how do you use them? Brigitte Stanford / Getty Images Or maybe you have more advanced questions like which stone you should place at your altar during a new moon ceremony, or where to place stones during meditation to get that third eye chakra poppin'. Look no further for the answers to such mysteries. Crystal expert and author of the forthcoming book Crystal Muse Heather Askinosie is here to answer your questions! Energy Muse / Via energymuse.com Maybe you want to know how to cleanse a crystal. Renphoto / Getty Images Sage or Palo Santo? Water or salt? You might need help picking a crystal out of the many, many options of stones to choose from. Miiicha / Getty Images There are almost TOO. MANY. Or perhaps you want to know which crystals to place around your home. Conejota / Getty Images How much feng shui is involved with crystals, anyway? Whatever your question, we want to hear about it! Submit your question in the box below, and it could appear in an upcoming BuzzFeed post!