Food made of rockstexascountryreporter
4 min - 2008-03-26
Sink your teeth into a jaw-breaking banquet of delicious dishes made entirely from rocks that look EXACTLY like food. Bill and Lois Patillo take their "Rock Food Table" to gem & mineral shows across the USA. (#1017, 2/24/07)
Natural Abstract
Unknown length - 2008-06-26
Point Lobos, California, beach rock macro details. Colors are accurate ! See large view..For more info, see : pt-lobos.parks.state.ca.us/Information.htm thirdeyephotocreations.com/
Using the Gemeni Table for Collecting Zircons
SDSU Geological Sciences
5 min - 2008-07-09
Zircon is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. Hafnium is almost always present in quantities ranging from 1 to 4%. The crystal structure of zircon is tetragonal crystal class. The natural color of zircon varies between colorless, yellow-golden, red, brown, and green. Colorless specimens that show gem quality are a popular substitute for diamond; these specimens are also known as "Matura diamond". The name either derives from the Arabic word zarqun, meaning vermilion, or from the Persian zargun, meaning golden-colored. These words are corrupted into "jargoon", a term applied to light-colored zircons. Zircon is a remarkable mineral, if only for its almost ubiquitous presence in the crust of Earth. It is found in igneous rocks (as primary crystallization products), in metamorphic rocks and in sedimentary rocks (as detrital grains). Large zircon crystals are seldom abundant. Their average size, e.g. in granite rocks, is about 100–300 µm, but they can also grow to sizes of several centimeters, especially in pegmatites. Owing to their uranium and thorium content, some zircons may undergo metamictization. This partially disrupts the crystal structure and explains the highly variable properties of zircon. Zircon is a common accessory mineral and found worldwide. The pervasive occurrence of zircon has become more important since the discovery of radiometric dating. Zircons contain amounts of uranium and thorium (from 10 ppm up to 1 wt%) and can be dated using modern analytical techniques. Since zircons can survive geologic processes like erosion, transport, even high-grade metamorphism, they are used as protolith indicators.
Magic Rocks
Unknown length - 2007-11-21
Mineral Rocks at the museum that look really cool under black light.
Metamorphic Rocks 8-Part2
Metamorphic Rocks 8-Part2mineguy101
10 min - 2008-03-15
Part 2 Metamorphic Rocks 8-Part2 •Pyroxene in limestone •Succession of minerals dependent upon temperature, ie. High heat; pyroxene, Lower heat Olivine •Metamorphic aureole •Ore concentrations in metamorphic rocks •Clarabelle Mill, Sudbury ON; Staurolite mineral outcrop •Regional Metamorphism ie. Sudbury basin
