What to Know Before You Buy a Crystal: An Honest Field Guide The crystal industry is beautiful, growing fast, and mostly opaque. An honest field guide to sourcing, treatments, the questions worth asking, and what we do about it. Read more
Certificates of Authenticity for Crystals: What They Mean, What They Don't What does a "Certificate of Authenticity" actually prove about a crystal? Most are written by the seller. Here's what to ask for instead, plus five questions worth more than any certificate. Read more