The Science Museum of Minnesota
Large Aura Amethyst Geode Sphere
Regular price
$74.99 USD
Regular price
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$74.99 USD
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The Large Aura Amethyst Geode Sphere is a striking stone specimen that pairs natural amethyst crystal formation with a lab‑applied metallic coating to create a vivid, iridescent finish. Shaped into a polished sphere, this larger piece offers more visual depth, making it especially engaging for close observation and display. It’s well suited for geology students, collectors, and anyone interested in how mineral science and material treatments intersect.
Why you'll love this:
- Made from natural amethyst geode with a bonded metallic coating for a bright, iridescent surface
- Larger 3 inch diameter spherical form highlights crystal structure and color variation from every angle
- Polished exterior combined with visible crystal interior creates strong visual contrast
- Durable stone construction suitable for display, study, or teaching collections
- A great conversation starter for learning about quartz growth, geodes, and material enhancement
A bold, eye‑catching way to explore crystal structure and the science behind natural and treated minerals.

