Pitchstone

Translation pitchstone into russian

Noun

The geologist found a piece of pitchstone during the field trip.

Геолог нашел кусок пекового камня во время полевой поездки.

Noun

A volcanic glass that is similar to obsidian but has a duller luster and is often found in shades of brown, black, or green.

The geologist collected a sample of pitchstone from the volcanic site for further analysis.