A yellowish or brownish siliceous substance formed by the hydration and chemical alteration of basaltic glass, and occurring in vitreous basaltic tuffs that have undergone rapid chilling.
Today’s NYT Connections Answers Apr 20, #314 - Daily Updates & Hints
Today’s Wordle Answer Apr 20 #1036- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Apr 20 Solved
NYT Strands Today - Hints, Spangram & Answers for April 20