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This illustrates how a potential treasure, chalcedony possibly even moss agate, appears when found, partially or completely covered in a white weathering rind.
0203G_ChalcedonyAsFound.jpg (321 Kb) (under photos/25/01_Random/)
By Alan Silverstein, ajs@frii.com (page updated Sun Jan 18 13:12:07 MST 2026)