Batu gelas

from indonesia

Verified
Standard
noun
sains
Locus
From indonesia

Definition

Extrusive igneous rock formed from lava that cools so rapidly that it does not form crystals, commonly known as obsidian.

Etymology

Combination of the root words 'batu' (stone) and 'gelas' (glass), referring to the rock's glass-like physical properties.

Semantic Category

Locus