170 results for iron

Did you know there are lots of rocks and minerals that we use in everyday life?  It is estimated that in the United States alone, every person will have used more than 3 million pounds of rocks, ...

Here are some of the many rocks and minerals currently used for medicinal purposes. Last month I wrote about the use of rocks and minerals for medical purposes in ancient times. You can read that blo ...

Poppy Jasper is an orbicular jasper. Poppy Jasper's pattern has small orbs or sphere shapes and it was so named because the orbs resemble the poppy flower. This semiprecious stone material is usu ...

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 ...

There is mining for rocks in Australia in all states and territories. The geology of Australia includes almost all known rock types and from all geological time periods spanning over 3.8 billion y ...

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 ...

Virginia though small, produces a wide variety of rocks, minerals, fossils and metals. Drowned valleys along the coastal plain of Virginia form long bays and, in the southeast, swamps such as the Gr ...

Turquoise is probably one of the most recognized semiprecious gemstones in existence. Turquoise has been popular for cabochons since prehistoric times. It is believed to be one of the first gemsto ...

  Missouri's major mineral resources include lead ore, iron ore, zinc, barite, and limestone. Galena was named the official state mineral of Missouri in 1967. Galena is a major source of lead ...

After Quartz, Calcite is the most next common mineral on the face of the Earth. Calcite comprises about 4% by weight of the Earth's crust. It is found throughout the world in sedimentary, metamo ...

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 ...