1 Mineral Podcast (Hardness) Linden Kalb Subscribe Unsubscribe 6y ago6y ago Subscribe Unsubscribe Päivittäin+ This podcast is about minerals and how their hardness works Cover art photo provided by Nicolas J Leclercq on Unsplash: https://unsplash.com/@nicolasjleclercq … continue reading
1 Mineral Podcast (Hardness) 0:10 Play Pause 6y ago0:10 Play Pause Toista myöhemmin Toista myöhemmin Listat Tykkää Tykätty 0:10 Make a podcast about hardness of minerals … continue reading