pitchstone

ریشه

From 'pitch' (black substance) + 'stone'. First known use in the 1810s.

مثال

• The geologist found a piece of pitchstone in the volcanic area.
• Pitchstone is often used in jewelry making.
• The pitchstone had a unique, resinous luster.

ترکیب‌های رایج

Piece of pitchstone Pitchstone jewelry Volcanic pitchstone