Rock Identifier
Likely amber or yellow-brown chalcedony/jasper fragment (Uncertain; possible amber (fossilized resin) or iron-stained chalcedony/quartz) — mineral
mineral

Likely amber or yellow-brown chalcedony/jasper fragment

Uncertain; possible amber (fossilized resin) or iron-stained chalcedony/quartz

AI-generated identification · may be incorrect

Small opaque-to-translucent golden-brown specimen with a dull to waxy luster and irregular fracture; apparent hardness is roughly 2–7 depending on identity. The image lacks enough detail to confirm crystal structure, cleavage, or specific gravity.

Identified More mineral
Explore Likely amber or yellow-brown chalcedony/jasper fragment in the encyclopedia →

Identify your own rocks.

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

Physical properties

Small opaque-to-translucent golden-brown specimen with a dull to waxy luster and irregular fracture; apparent hardness is roughly 2–7 depending on identity. The image lacks enough detail to confirm crystal structure, cleavage, or specific gravity.

Formation & geological history

If amber, it is fossilized tree resin, commonly Paleogene–Neogene in age; if chalcedony/jasper, it formed from silica-rich fluids filling cavities or replacing rock. Color likely comes from organic compounds or iron oxides.

Uses & applications

Amber is used in jewelry and ornaments; chalcedony and jasper are used for cabochons, carvings, tumbling, and lapidary work. This fragment appears chiefly suitable for identification or collecting.

Geological facts

Amber is warm to the touch, can float in saturated salt water, and may smell resinous when gently warmed; chalcedony will scratch glass, whereas amber will not. Visual identification alone is inconclusive.

Field identification & locations

Test cautiously: amber is lightweight, may show flow lines or inclusions, and can produce static after rubbing; chalcedony has a glassier fracture and greater heft. Common sources include Baltic amber deposits and silica-rich volcanic or sedimentary regions worldwide.