Lydite
Translation of "lydite" into Russian
Definitions
lydite
NounA type of hard, fine-grained, black or dark-colored siliceous rock, often used as a touchstone for testing the purity of gold.
The jeweler used a piece of lydite to test the authenticity of the gold necklace.
lydite
AdjectiveRelating to or made of lydite, a hard siliceous rock.
The archaeologists discovered lydite tools at the excavation site.