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5" x 5" x 3"
This polished specimen pair features black
Each type of the Lake Superior region's agates are discussed in-depth
Stone: 25mm x 35mm
BST109pr Blue Star Thunderegg Specimen Pair Wack N' Crack 5" x 5" x 3"These polished halves of a large Blue Star Thunderegg show two fused open cavities revealing botryoidal chalcedony formations coated in sparkling druzy, with one half having secondary mineral growth over the small crystals and the other having a small hole from the cavity extending all the way to the edge of the crust. The open cavities are lined with agate showing light blue feathery banding, and have many distinct pointed star points that extend
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