
igneous
Weathered rock fragment
Unidentified, likely fine-grained mafic volcanic rock
AI-generated identification · may be incorrectSmall, rough, olive-brown fragment with a dull, granular surface; mineral grains and crystal structure are not clear in the image. Hardness and specific gravity cannot be determined visually.
Identified More igneous →
Explore Weathered rock fragment in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Small, rough, olive-brown fragment with a dull, granular surface; mineral grains and crystal structure are not clear in the image. Hardness and specific gravity cannot be determined visually.
Formation & geological history
The image does not show enough diagnostic detail to establish its composition, formation process, or age; if volcanic, it formed from cooled lava.
Uses & applications
No specific industrial or jewelry use can be identified; it may be suitable as a basic geological collection specimen.
Geological facts
Its small size and weathered surface obscure features needed for confident identification.
Field identification & locations
A closer view, fresh broken surface, hardness test, and streak test would help distinguish volcanic rock from other common stones. The image provides no basis for identifying a locality.