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Collecting Fluorescent Minerals - (Post)
For many rock collectors it is not about beauty, or rarity, or location. Fluorescence is about how that rock or mineral looks under a UV light. Some ordinary and often ugly rocks ...
Finding what you want-Search engines and the SEARCH box - (Post)Tips on how to search my website to find the rocks you are looking for. Anybody who sells or shops online knows that the current search algorithms on both Google and eBay-and probably on most ...
Fluorite - (Page)Fluorite is a calcium fluoride crystal with a hardness of 4 and a perfect cleavage (meaning it will break easily along a flat plane). It forms in massive, cubes, or isometric crystals and can be f ...
Kentucky Rocks and Minerals - (Page)Kentucky may not have lots of rocks and minerals, but it has lots of fossils. Long ago Kentucky was covered in shallow tropical seas, so brachiopod, coral, sponge, crinoid, trilobite, and nautiloid ...
Madagascar Rocks and Minerals - (Page)Madagascar produces an amazing array of precious gemstones. In addition they have lots of semiprecious stones such as agates and jaspers, as well as fossils, and minerals. Madagascar is the ...
Illinois Rocks and Minerals - (Page)Illinois is not known for producing many gemstones or minerals. But Illinois was the leading producer of fluorite in the United States for many years, and the mineral was named the official state mi ...
Colorado Rocks and Minerals - (Page)Colorado, and 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 ou ...
Tennessee Rocks and Minerals - (Page)Tennessee has more mineral resources than any other state east of the Mississippi, except North Carolina. Limestone and dolomite, bituminous coal, lead, zinc, ball clay, sand and gravel, phosphate, ...
New Mexico Rocks and Minerals - (Page)New Mexico is one of the richest states for finding rocks and minerals. Varieties of agate, jasper, chert, or petrified wood are found in 15 of New Mexico's 32 counties. The New Mexico state gems ...
Washington Rocks and Minerals - (Page)Washington's Petrified Woods are some of the finest in the nation. The Petrified Woods not only represent a broad range of colors and patterns, but also represent a wide range of identifiable spec ...
Indiana Rocks and Minerals - (Page)Indiana is mostly sedimentary rock brought by ancient seas and glaciers. This is great for fossils, but not great for rocks and minerals. During the past 2 million years, two major glacial advances ...
New Hampshire Rock and Minerals - (Page)New Hampshire has a large variety of rocks and minerals. This is due mostly to the pegmatites that comprise a large portion of New Hampshire's surface. The igneous and metamorphic rocks were worn d ...