Check the listing for details. Moss Agate Dragon Head Carving- Drusy- WYSIWYG. Condition: New. Listed at 163.35 USD. The distinctive green moss-like inclusions in moss agate are typically composed of minerals such as chlorite, hornblende, or other manganese or iron oxides. These inclusions create unique patterns resembling moss or ferns within the translucent chalcedony matrix.