For use in jewellery, most opal is cut and polished to form a cabochon, a convex shape that maximises the viewing angles through which an opal's play of colour can be observed. "Natural" opal refers to …

Opal makes it easy to create multi-step flows that chain prompts, model calls, and tools together. Simply type what you want to make with natural language and Opal builds a workflow you can...

Opal [Experiment]

Jul 20, 2011 · Experience the best restaurants in Delray Beach at Opal Grand, featuring oceanfront dining, vibrant bars, and a rooftop restaurant with coastal views.

Mar 5, 2025 · Explore the vibrant world of gemstones! Learn about the different types of opal and where to find them in our comprehensive guide.

Nov 27, 2025 · Opal, silica mineral extensively used as a gemstone, a submicrocrystalline variety of cristobalite. In ancient times opal was included among the noble gems and was ranked second only …

Photos of opal from around the world. Guidance for people who want to buy opal, see different types of opal, understand their names, learn about synthetics and imitations.