We have a nice selection of specialty crystals for the avid collector. Choose from aragonite clusters, fluorite octahedrons, twinned staurolite, grossular garnet, gypsum roses, ulexite, iceland spar calcite, galena, quartz and herkimer diamond quartz.
Filed under: Geology / Earth Science, Minerals on December 12th, 2011 | No Comments »
Question: What is the name of sand grains cemented together?
Filed under: Geology / Earth Science, Minerals, Rocks on September 11th, 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 »
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 »
OK, today I thought I would talk a little about Herkimer Diamonds. If you know what they are, you’ll probably agree with me that they are so cool! Sorry! Herkimer Diamonds are not real diamonds. Herkimer Diamonds are actually quartz crystals that are naturally formed with points on both ends of the crystal. These crystals [...]
Filed under: Uncategorized on June 23rd, 2008 | No Comments »
