Gems

Topaz is a precious stone, typically colorless, yellow & is Allochromatic, which means that its color is caused by…

Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide with trace amounts…

Ruby is one variety of the corundum mineral species, which also includes sapphire. Ruby is highly regarded and…

Value for amethysts depends almost entirely on color. Siberian mines once produced the world’s finest stones.  They featured…

Geologists believe both types of deposits relate to the spreading of the sea floor that occurs when the…