Aragonite is a white to colorless minerals which has shades of red, yellow, orange, or brown. Aragonite is made of calcium carbonate, like calcite, and will fizz in an acid. Nice specimens of aragonite can be found in Spain, Morroco, Englad, France, Mexico and the United States, to name a few places.
Filed under: Geology / Earth Science, Minerals on July 22nd, 2009 | No Comments »
July’s birthstone is the ruby. Rubies are one of the hardest known minerals. With a hardness of 9 on the Mohs scale, it is only softer than a diamond. Rubies are known for their beautiful red color.
Filed under: Geology / Earth Science, Minerals on July 16th, 2009 | 1 Comment »
Kids will learn about some of the Earth’s most beautiful and interesting rocks in Mini Me Geology’s Sedimentary Rock collection.
Filed under: Geology / Earth Science, Rocks on June 17th, 2009 | No Comments »
Loess is formed from fine (small) grained, windblown sediment in glacier or desert areas. Loess is made of mostly silt but may also have some small amounts of sand and clay. The major mineral present is quartz with minor amounts of feldspar, calcite, dolomite, and clay.
Filed under: Geology / Earth Science, Rocks on June 4th, 2009 | No Comments »
Quartz is the most common mineral found in the Earth’s crust.
Filed under: Geology / Earth Science, Minerals, Rocks on March 20th, 2009 | No Comments »
A geyser is a hot spring which ejects hot water a vapors through a crack in the rock.
Filed under: Geology / Earth Science, Minerals, Rocks on March 19th, 2009 | 1 Comment »
Our latest Ask-a-Geologist question answered! How many years do you have to attend school to become a geologist?
Filed under: Geology / Earth Science on March 18th, 2009 | 2 Comments »
Amethyst is a common, purple form of the mineral quartz. Fairly hard, amethyst is a 7 on the Mohs hardness scale which has a range from 1 (softest) to 10 (hardest).
Filed under: Geology / Earth Science, Minerals on March 16th, 2009 | No Comments »
Rivers are natural water bodies which flow toward another water body such as another river, lake or ocean.
Filed under: Geology / Earth Science on March 13th, 2009 | No Comments »
Quartz is the most common mineral found in the Earth’s crust. Fairly hard, quartz is a 7 on the Mohs hardness scale which has a range from 1 (softest) to 10 (hardest). Quartz, which is sometimes called “Rock Crystal,” is often colorless and has a glassy (shiny) appearance. Quartz has a white streak when rubbed [...]
Filed under: Geology / Earth Science, Minerals on December 5th, 2008 | 2 Comments »
