Blue Goldstone 1x2mm Square Rondelle - 15-16 Inch 48hr_08262025 Opal is a natural gemstone

Opal is a natural gemstone made from silica mineral and 90% are found in Australia

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Terra Agate contains the best of nature in a variety of small shapes

The fibrous asbestos inclusions in the stone give it the flash that inspired its name

Blue Goldstone 1x2mm Square Rondelle - 15-16 Inch 48hr_08262025 Opal is a natural gemstoneBlue Goldstone is an opaque, midnight blue glass with flecks of copper suspended within it. These flecks glitter as they catch the light and may appear white against the dark blue of the glass. Goldstone was first created during the Italian Renaissance when, as legend has it, a Venetian monk tipped molten copper into a vat of molten glass. When this combination crystallized, the result was glass permeated with thousands of tiny metallic sparkles.