涅石

Traditional form:

涅石

Pinyin (reading):

nièshí

Definitions:

• alumen
• alunite (TCM)

Characters:

• 涅 - to blacken; slime, black mud
• 石 - stone, rock, mineral

Traditional characters:

• 涅 - to blacken; slime, black mud
• 石 - stone, rock, mineral