372 results for jasper

Agates are members of the chalcedony family. Chalcedony (kal SED' nee) is any form of microcrystalline quartz, where the crystals are too small to be seen without high magnification. However, in the...

North Dakota has lots of oil, gas, sand, coal and other natural resources. North Dakota is in the U.S. region known as the Great Plains. Eastern North Dakota lies in the level bed of the ancient...

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...

Texas produces a large variety of gemstones, rocks, minerals and fossils. Sandy sediments typical of the coastal plain make up southeastern Texas. Behind this lies the Llano uplift of central Texas...

Nebraska is not a great state for finding gem grade rocks and minerals. Nebraska is a part of the Great Plains, with its plain sloping from northwest to southwest, including rich farmlands 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...

Vermont 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 west, the Taconic Mountains...

The Kirkby's were well-known and well-respected in the rock and fossil world. If you have been following my blogs-you know that my foray into Petrified Wood began when we purchased an amazing collecti

  Louisiana is not known as a great place to find rocks and minerals. It is completely made up of sedimentary rocks. There are no outcrops of metamorphic or igneous rocks. Much of Louisiana...

The Black Hills, South Dakota is one of the top 5 places in the U.S. for rocks and minerals. In addition to agate and rose quartz, there are more than 40 other minerals found here: including copper,...

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...

Limb cast are some of the most beautiful “Petrified Wood” around.  But what is a limb cast? Limb cast begin the same way that Petrified Wood does, trees are buried quickly under several hundred yards