TL;DR:
Chalcedony is quartz, but not all quartz is Chalcedony.
"Chalcedony" is a broad term that refers to a family of cryptocrystalline quartz minerals. Meaning they’re made up of tiny interlocking quartz crystals too small to see without a microscope.
Here's how to spot them 👇
1. Structure = the biggest giveaway
• Quartz is macrocrystalline. The crystals form visible points, usually six-sided. Think amethyst, clear quartz, smoky quartz.
• Chalcedony is microcrystalline. The crystals are so small they look smooth and waxy, with no visible points.
2. The forms they come in:
• Quartz: grows as points, clusters, druzy, double-terminated crystals. Example: Amethyst, Clear quartz, Smoky Quartz, Citrine.
• Chalcedony: forms in bands, nodules, botryoidal shapes (like bubbles), or geode linings. Example: Carnelian, grape agate, Blue Lace Agate, Onyx.
I tried to break this down in the simplest way possible... hope it clicks now! 😁
Share this lil nugget of crystal wisdom with your friends and customers!
BTW… if you're ever stumped trying to ID a stone, we made an app for that. Just snap a pic and drop it in, the Crystal Identifier App can ID it with about 80% accuracy.
