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-Typical colors: White, gray, colorless,
light pink
-Typical sizes: 7
to 14 centimeters
-Typical shapes: Thunderegg-like
(bubbly & ridged)
-Most distinguishing characteristic:
White agate in reddish thunderegg matrix with chalcedony as primary layer
(1st layer).
-Special Notes:
Thunderggs with pink to tan agate are somewhat uncommon.