62 results for washington

Washington's Petrified Woods are some of the finest in the nation. <

The colors in Petrified Wood come from minerals present during formation.  Petrified Wood may retain the details of the original wood, but often the bright colors are not common in the actual wood and

This is a piece of petrified forest floor! It is from the Kirkby collection and it was self-collected sometime in the 1930's to the 1960's. On the back a handwritten note says: “6472-Tsuga sp. Hemlock

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,...

  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...

Unakite is a granite composed of pink orthoclase feldspar, green epidote, and quartz. It exists in various shades of green and pink and is usually mottled in appearance. Unakite is also referred to...

Dendritic Agates have very thin tree-like inclusions of iron, manganese, or other metallic oxides that grow in natural fractures. These inclusions called dendrites were named after the Greek word...

Petrified Wood is found all over the world. Countries with well-known petrified wood deposits include: Argentina, Australia, Belgium, Brazil, Canada, China, The Czech Republic, Germany, Ecuador, Egypt

Finding rocks and minerals in Maryland can be challenging. A lot of the good hunting areas, where rocks and minerals may be found, are heavily vegetated. The easternmost part of the state of...

Looking for mining industry resources? This is a list of government agencies and other organizations that are the best sources of mining and geological information. Many of these institutions may offe

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...

Everybody knows rocks are sedimentary, igneous, or metamorphic.   But did you know there are scientist who actually specialize in each one of the 3 varieties? They spend their time studying and exanim