Obsidian is a natural black, variegated black, red, or orange volcanic glass formed from cooling lava. It's been used by people for many

There's not a lot we can say about gemstones beginning with N because there really aren't many! Sure, there are regionally named var

We've reached the halfway point of our Gemology guide! This week we bring you gemstones beginning with M... Mabe Pearls, Malachite, Marc

Lapis Lazuli is technically not a gemstone. It's a composition of up to 15 other minerals all fuzed together. Lapis Lazuli is famous for

Jade is actually two different minerals, Jadeite and Nephrite, that are very similar in appearance and feel. Both have been used for millenn

The amethyst has many superstitions attached to it, not merely that it can protect against the evils of Bacchus, the God of Wine.... Leonard

Iolite is often mistaken for many other blue gemstones, inlcuding sapphire, tanzanite and blue spinel, but analysis of it's composition

Garnet has been prized for millennia. It has been used in jewellery and decoration dating back thousands of years. Egyptians considered garn

Hackmanite is pink sodalite mineral first noted in Greenland in 1896, but not found in gemstone quality until a discovery in Quebec in 1991.

Well this shouldn't take long; there really aren't that many and what we have are mostly variants of other minerals and gems! But if