A picture with names to describe opals.Credit: geology.comWhat Is Opal?Known as a precious opal it can sparkle all colors with an intensity and chromatic quality of color that matches the fire of a diamond.There are countless types of opals located in deposits all over the globe. If you are just beginning the process of...
Lebanon Meteorite: NASA’s Curiosity Mars rover discovered this huge meteorite, called “Lebanon” on July 15th, 2014. A small piece of the meteorite, called “Lebanon B”, is allowed to be seen in the foreground. The cavities on the surface of the meteorite may have been cavities, once filled with olivine crystals, or, they may be...
Iron Meteorite: We are all shown this detail of a polished and etched slice of a a siderite (iron) meteorite found at Brenham Field, Kansas, in 2005 by professional meteorite hunter Steve Arnold. The slice was recorded with a mild nitric acid based solution to reveal a pattern of iron-nickel alloys, taenite and kamacite....
What is the San Andreas Fault?The San Andreas Fault is the gliding boundary in between the Pacific Plate and the North American Plate. It slices California in 2 from Cape Mendocino to the Mexican border. Moreover, despite San Francisco’s legendary 1906 earthquake, the San Andreas Fault did not go through the city. However, neighborhoods...
