mineral
Blue-dyed tumbled quartz or glass imitation
Quartz (SiO₂), appearance possibly enhanced with blue dye; identity uncertain from image
AI-generated identification · may be incorrectTranslucent vivid turquoise-blue, vitreous luster, irregular conchoidal-looking fractures, and rounded tumbling; quartz hardness 7 and specific gravity about 2.65. The intense uniform color and bubble-like clarity could also indicate man-made glass, which would make it non-geological.
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Physical properties
Translucent vivid turquoise-blue, vitreous luster, irregular conchoidal-looking fractures, and rounded tumbling; quartz hardness 7 and specific gravity about 2.65. The intense uniform color and bubble-like clarity could also indicate man-made glass, which would make it non-geological.
Formation & geological history
If quartz, it formed in silica-rich veins or cavities through hydrothermal processes, commonly in relatively young to ancient host rocks, then was cut, dyed, and polished. If glass, it is manufactured rather than geologically formed.
Uses & applications
Dyed tumbled quartz is sold for inexpensive décor, craftwork, and metaphysical collections; natural blue quartz is uncommon and collectible. Glass imitations have mainly decorative value.
Geological facts
Natural quartz rarely has this saturated, evenly distributed turquoise color; dye concentrations in cracks or pits are a useful clue.
Field identification & locations
Check with a 10× loupe for dye pooling, round gas bubbles, or flow lines; a scratch test can distinguish glass/quartz only imperfectly. Common sources for dyed quartz include Brazil, Madagascar, and China.
