57 results for pyrite

Vermont is not known for gems, but it is known for its marble, serpentine, and other metamorphic rocks. Much of the area of Vermont is broken up by the Green Mountains and, parallel with them in the ...

There are rocks and minerals to be found in Iowa, but the variety is low. Iowa is mostly rolling prairie land deposited by glacial activity over sedimentary rock. In the northeast corner, where ther ...

Florida is not really known for good cutting or lapidary material. But Florida does have some cool rocks and minerals. Primarily Florida is covered with sedimentary rocks: limestone or calcite and ...

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, 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 ...

Rhode Island is one of the worst states for finding gem grade rocks and minerals. Once a plain not much above sea level, Rhode Island has been uplifted and its surface covered by stream action into ...

Connecticut is small and the variety of rocks found there is small. But Connecticut still offers great rockhounding. A central lowland valley divides eastern and western Connecticut. This valley is ...

Massachusetts, though small, has great rocks and minerals found there. Massachusetts is divided into two geological provinces by the Connecticut River. East of the river, the land falls, with a few ...

Collectible rocks and minerals are found in every province and territory in Canada. Canada is the second largest country in the world. It is the world leader in the production of potash and ranks am ...

Wisconsin is one of the best states in the U.S. for finding a variety of rocks, crystals and minerals. Wisconsin is a rolling plain laid down on sedimentary rocks and broken in places by uplifted ig ...

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 ...

Arkansas is a prime state for rockhounding because of its abundance of quartz crystals. In fact, quartz was named the Arkansas state mineral in 1967. Southern and eastern Arkansas is sandy river de ...