192 results for mexico

Due to covid and the influx of live shows on social media, more and more people are getting into rocks and minerals. That’s great for those of us who make a living mining and selling rocks and ...

Fire Agate has such small layers that light entering them forms interference colors known as "fire." It is thought to be formed when hot water saturated with silica and iron oxide invaded cavities ...

Crazy Lace Agate is a banded chalcedony that is infused with iron and aluminum. Chalcedony is a microcrystalline quartz. Creamy browns, blacks, grays and golds (and occasional reds and pinks) swi ...

Chrysocolla Cuprite also known as Sonora Sunset, and sometimes Sonoran Sunrise. It is named for the lovely and colorful sunsets (or sunrises) over the Sonoran Desert, from which it is found. This ...

The name Azurite is derived from the Arabic word for blue -azure.  The intensely darker royal blue Azurite is often found with its cousin, rich green Malachite. They are both hydrous copper ...

Malachite, a beautifully patterned green mineral, is a copper carbonate or a copper ore. It has a hardness between 3.5 and 4. Malachite crystallizes in the monoclinic crystal system, and most of ...

Copper Gemstones are stones that contain Native Copper or copper minerals. Thirteen metals occur as native elements.  Obviously gold and silver are the most well known, but Native Copper ...

Labradorite has an uninteresting color of dark gray, but displays a beautiful iridescence. The iridescence displays rainbow-colored reflections known as labradorescence when light hits it in ...

Colorado, like most western states, has produced gold, copper, and silver. Gold was discovered in 1859 and the most productive gold mine in Colorado, the Cresson Mine, produced more than 258,000 o ...

  Arizona is rich in rock and minerals. But even better-it is the home to the world's largest Gem and Mineral Show! Every year for 2-3 weeks, around the first of February, rock and mineral dea ...

Learn about the hundreds of natural minerals and crystals! What is a mineral specimen? I think the best-kept secret in the rockshop world is mineral specimens. The average person has probably never ...

Origin of Names for Rocks and Minerals How do rocks and minerals get their names? Rock and Mineral names can be traced quite often to Greek and to Latin. It is common practice to add an "ite" to ...