Explore Rock Formations, Salt, and more!

An Azurite geode.

Azurite is a blue copper mineral with the chemical formula It forms monoclinic crystals. Azurite weathers into malachite. Azurite is used as a pigment, in jewelry, and as a decorative stone. This stone is called "Velvet Beauty" from Bisbee, Arizona.



Fire opal growing in the rings of a tree

Fire opal growing in the rings of a tree

sun-hawk submitted: Amazing Rare Opalized Wood Boulder Opal with Bright Emerald Green and Blue Growth Rings.

Birthstones By Month

Birthstones By Month Infographic

♦◊ Gems ◊ Stones ◊♦ An infographic guide to each month’s birthstone. The most interesting facts about the stone or gem symbols about the month you were born.

Petrified wood

If I understood the material correctly, these trees have actually turned into agates over the years. When I was a child, my grandmother and I used to collect agates on the shores of Lake Superior in Michigan.


Boulder Opal in ironstone Queensland, Australia ~ The Art of Photomicrography: Gemstone Inclusions by Danny Sanchez

Bildresultat för ädelstenar, mineraler

Ethiopian opal is still a new gemstone. Ethiopian opal is quite unique and different from more common Australian and Mexican opal. Not many people know about this opal yet. I am a gem cutter and have worked.