February 3, 2014
From Ponds to deBeers
Guest Question after a looooooong time. From shenoyvarun86.
Bust of a German mineralogist. Identify
Cracked by: Sumanth Patlolla , ShreyGoyal , Manish Achuth , Rogi , s m muneer ali , Sayan Chaudhry , Pawankumar Hegde , Bipin Banavalikar and Bastet
Answer:
Friedrich Mohs and the Mohs Scale of Mineral Hardness
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