Subsequent laboratory analysis revealed it to be a distinct gemstone, later named after its discoverer. Once known as Bixbite, Red Beryl retains its status as one of the rarest gemstones in the world.
There's a mineral so rare that only one specimen of it has ever been found in the entire world. It's called kyawthuite ( cha-too-ite ), a tiny, tawny-hued grain weighing just a third of a gram (1.61 ...
Tanzanite is only found in northern Tanzania and is used to make ornaments. It is one of the rarest gemstones on Earth, and one local geologist estimates its supply may be entirely depleted within ...
What is the 'new fact deep inside the Earth' that was trapped inside the ultra-rare diamond? - GIGAZINE Along with diamonds, peridot is one of the gemstones discovered at the deepest depths.
A team of archaeologists has discovered a rare rock used to make tools in the Stone Age. The "polishing boulder", found in the Valley of the Stones near Dorchester, would have been used to make ...