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gemstone main cabochon creation
min data

Mineral: quartz
Gem: moss agate (cryptocrystalline)
Size: 30 mm x 40 mm
Carat: 50+ ct
Cut: cabochon
Origin: unknown
General Info: Agate (achates) was named from the river Achates, now the Drillo, in Sicily, where the stone was first identified. It is cryptocrystalline quartz (micro crystals) usually with a banded pattern (although not always).
Additional Information
It is a form of agate with embedded filaments and other patterns suggestive of moss. The "moss" has no relationship to organic matter, but simply resembles the look of moss. It can be green, but may also be brown, red, pink, or black. This agate has manly brown and red moss enclosed by the clear chalcedony. Cab cut by author.
This is a somewhat more traditional moss agate with the green moss that closely resembles organic material. Again it a mineral precipitation and was never organic in nature.

The closeup shows the moss-like filaments near the edge of the agate.