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The history of Lake Superior's formation and how it relates to agates
This material is smaller in size averaging 0
Set of 5 Golden Imperial Topaz crystals in translucent golden yellow and orange
Length: 25 mm
BST123pr Blue Star Thunderegg Specimen Pair From South America The history of Lake Superior'sThese polished halves of a large Blue Star Thunderegg show an open cavity revealing botryoidal chalcedony formations covered in sparkling crystal druzy. Outlining the cavity is translucent agate with white and pale blue feathery bands, inside gray and brown rhyolite with patterning similar to petrified wood. The chalcedony shows green fluorescence under 365nm ultraviolet light. Polished Surface: 13. 5cm x 8. 4cm and 14. 7cm x 8. 4cm Approx. 2. 25" and
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