.  Dwarves' Earth Treasures Museum: How to ID Agate Roughs Moctuzuma Agates

-Typical colors: colorless, tan, brown, gray, white, yellow, orange. Other colors are rare.
-Typical sizes: 3 to10 centimeters (haven't seen any larger ones)
-Typical shapes: Rounded, domed, and characteristicily cigar-like.
-Most distinguishing characteristics: Cigar-like rough nodules, brownish primary color (1st layer) is almost always transparent, heavily weathered.
-Special Notes: Some nodules contain rare tightly-banded colorful agates. Chromatography is common in those kind of agates.