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Jade refers to an ornamental mineral, mostly known for its green varieties. Jade has been used for tens of thousands of years, initially as tools b...

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. All species of garnets possess simila...

Prehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South...

Prehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South...

Australian Green Opal is a variety of Common Opal which is a mixture of Opal and nontronite. Common Opal is generally opaque, without the play of c...

Peridot (pair-uh-doe) is one of only two gems, the other being Diamond, that is not formed in the Earth’s crust. Rather, it is born in the molten r...

Chrysoprase is a bright apple green, translucent stone, whose color often caused ancient jewelers to confuse it with Emerald. A cryptocrystalline C...

African Turquoise is not actually Turquoise, but rather a speckled teal Jasper found in Africa and often treated to simulate the beautiful blue to ...

Emerald is one of the four “precious” gemstones, the others being Diamond, Ruby and Sapphire. It is the green form of Beryl, colored by trace amoun...

African Turquoise is not actually Turquoise, but rather a speckled teal Jasper found in Africa and often treated to simulate the beautiful blue to ...

Bloodstone most commonly refers to green Jasper with red inclusions consisting of Hematite. Naturally occuring in hues of blue to green to green wi...

Strawberry Quartz is a translucent, milky to pink silicon dioxide mineral. Its needle to like inclusions of hematite are iridescent red. Quartz has...

Chrysoprase is a bright apple green, translucent stone, whose color often caused ancient jewelers to confuse it with Emerald. A cryptocrystalline C...

Green Lodolite is Quartz with inclusions of sand. These inclusions range broadly in type and color and produce patterns that can look like gardens....