Minerals. Minerals websites directory

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USGS Photo glossary of volcano terms: Rhyolite
Rhyolite is a light-colored rock with silica (SiO2) content greater than about 68 weight percent. Sodium and potassium oxides both can reach about 5 weight percent.

Turquoise Mines and Stones | Turquoise History and Facts
Turquoise mines have operated for thousands of years across the globe. Learn more about the turquoise mines producing the most sought-after stones.

The mineral and gemstone kingdom
An interactive reference guide to rocks, minerals, and gemstones.

The Beginner’s Guide to Backyard Geology
This guide shows you exactly how to mine your own backyard for treasures and cultivate a lifelong hobby. It’s the perfect mix of fun in the sun and good, old-fashioned learning, so amateur geology is a great way to keep kids occupied.

TAK Minerals
I'm a Japanese mineral collector TAK. I now find myself taking pictures only of stones! When I saw mineral photos accumulating, I decided to put some of them online. I hope you will enjoy visiting my photo gallery.

Sweet Surrender Crystal Mine
Own your own crystal mine (how to become a starving miner), Digging crystal (where to, how to, what to), Cleaning crystal (tips, tricks and techniques) Buying crystal direct from the mine (points, clusters, metaphysical, unique & unusual).

Spathfluor.com
Spathfluor.com est l'expression d'une passion pour le monde de la mine, de la fluorine. Incitation au voyage, le livre de la mine de Valzergues qui lui est consacré vous emmène à la découverte de ce mineral peu connu du grand public.

Sharing My Obsession With Moldavite With You
We collect and sell genuine, quality Moldavite crystals, including the Besednice `hedgehog´ from the Czech Republic to healers, and collectors.

Scottish agates
Celebrating the beauty of agates from Scotland. Large list of localities.

RocksForKids.com
This site is for kids of all ages who love rocks. Here you will find out stuff about rocks & minerals and where to go to find out more. If you already collect rocks then this is the place for you! Find out where you can get more rocks...

Rockroost
As you browse through our pages you will see that we offer a variety of educational, informative and hopefully useful articles on Rockhounding trips we have been on; Cutting and Polishing Geodes and Gems; News; Tips; Photos.

Rockhounding Arkansas
Arkansas quartz crystals, rocks and minerals, and diamonds are famous around the world. Here is the authoritative guide to rock and mineral collecting.

Pirita
Caraterístiques generals: És insoluble a l'acid clorhídric i soluble a l'àcid nítric. El seu nom vol dir foc, el fet que quan la colpeges amb l'anella, produeix xispes. Conté 53,4% de sofre i 46,6% de ferro.

Miniere di Sardegna
I Minierabondi sono un gruppo informale di persone legate dalla passione per le escursioni, l'ambiente, le miniere e Internet. Prediligono le vecchie miniere abbandonate, nascoste, silenziose: le scovano e le sbattono in rete.

Minerals of the United States
This site contains picures of both are U.S Mineral collection and our World Wide Thumbnail collection.