gemstone
Blue Sandstone
Man-made glass with cobalt and copper inclusions
AI-generated identification · may be incorrectHardness of 5.5 to 6 on the Mohs scale, deep dark blue or black color with a metallic, sparkling luster due to embedded copper crystals, amorphous crystal structure.
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Physical properties
Hardness of 5.5 to 6 on the Mohs scale, deep dark blue or black color with a metallic, sparkling luster due to embedded copper crystals, amorphous crystal structure.
Formation & geological history
Created in 17th-century Venice through a serendipitous process where copper filings accidentally fell into a molten glass batch, now synthetically manufactured worldwide.
Uses & applications
Widely used for making polished gemstone beads, bracelets, pendants, decorative carvings, and alternative metaphysical items.
Geological facts
Also known as stargoldstone or monk's gold due to a legend that Italian monks invented it while trying to transmute lead into gold, though it is entirely artificial.
Field identification & locations
Easily identified by its intense starry-night sparkle suspended uniformly in a dark matrix; commonly sold globally in crystal shops and markets.
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