Jasper / Agate with Petrified Wood Inclusion

Hardness 6.5-7, multicolored (red, orange, grey, black), waxy to dull luster, microcrystalline structure, conchoidal fracture.

Formed through silica precipitation from groundwater in sedimentary or volcanic environments, often filling cavities or replacing organic material (like wood).

Used in lapidary arts, cabochons, jewelry, and ornamental objects.

This specimen appears to be a mixed cryptocrystalline quartz, possibly from a region like the Morrison Formation in the US, known for colorful dinosaur bone and petrified wood.

Identify by its hardness (scratches glass), lack of cleavage, smooth conchoidal fracture, and vibrant, opaque to translucent colors. Common in western US states.