BST109pr Blue Star Thunderegg Specimen Pair Wack N' Crack Each type of the Lake

Each type of the Lake Superior region's agates are discussed in-depth

base: 9cm x 7cm

Pebble Size Range:

This is a polished specimen featuring banded agate in colors of yellow

the area between the calcite and the Bentonite transformed into aragonite which is the dark brown crystal layer

BST109pr Blue Star Thunderegg Specimen Pair Wack N' Crack Each type of the LakeThese 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