A type of volcanic rock that has been altered or reshaped.

परिवर्तित तुफ़

English Usage: The building was constructed using reworked tuff, giving it a unique aesthetic.

Hindi Usage: भवन को परिवर्तित तुफ़ का उपयोग करके बनाया गया, जिससे इसे एक अनूठा सौंदर्य मिला।