mineral

Green aventurine cabochon (probable)

Quartz, SiO₂, with green fuchsite or chlorite inclusions

AI-generated identification · may be incorrect

Polished, domed cabochon with medium-to-dark green color and slight internal mottling; vitreous to waxy luster, no visible cleavage, Mohs hardness about 6.5–7, and specific gravity near 2.6–2.7. The rounded shape and polish indicate a cut geological material rather than a raw specimen.

Identified August 18, 2026More mineral →

Explore Green aventurine cabochon (probable) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Aventurine forms when quartz-rich rock crystallizes with disseminated green mica (usually fuchsite) or chlorite, commonly in metamorphic environments. The image alone cannot establish a geological age or confirm the inclusion mineral.

Uses & applications

Used for inexpensive jewelry, carvings, ornaments, and metaphysical collectibles; cabochons are commonly set in pendants and rings.

Geological facts

Natural aventurine often shows subtle glitter (“aventurescence”) from reflective mica flakes, though this specimen appears relatively opaque and may also be dyed chalcedony or glass imitation.

Field identification & locations

Check for natural granular texture, tiny reflective mica flashes, and hardness sufficient to resist scratching with a steel blade; glass imitations may show bubbles, while dye can concentrate in fractures. Common sources include India, Brazil, Russia, and Tanzania.