Mineral Podcast (Hardness)
By Linden Kalb
This podcast is about minerals and how their hardness works
Cover art photo provided by Nicolas J Leclercq on Unsplash: unsplash.com/@nicolasjleclercq
Cover art photo provided by Nicolas J Leclercq on Unsplash: unsplash.com/@nicolasjleclercq
Mineral Podcast (Hardness)Dec 02, 2018
00:00
00:11