What is the weakest gem?
Click to see full answer
Also question is, what is the weakest gemstone?
Amber is among the weakest MINERAL GEMSTONES. It's a bit of a trick question. The weakest MATERIAL is talc.
Subsequently, question is, what is the weakest mineral? talc
Keeping this in consideration, what is the softest gemstone?
The softest stones include talc (1), gypsum (2), calcite (3) and fluorite (4). The line between harder and softer gems is generally thought to be a Mohs rating of 7, where gems with a hardness of 7 or more are suitable for rings, while those below 7 are not.
What is the rarest gem on earth?
PAINITE // ONCE THE WORLD'S RAREST GEM Painite was first discovered by British gemologist Arthur Charles Davy Pain in 1951 and recognized as a new mineral in 1957. For many years only one specimen of the dark red crystal was in existence, housed at the British Museum in London, making it the world's rarest gemstone.