Posts Tagged ‘woo not needed’

Home Igneous Sedimentary Metamorphic Rock Cycle Trilobites A “replica” of a rare Moroccan trilobite. Very good completeness. Incredible how they can reproduce these intricate trilobites with a good likeness to the real ones. Yes, these masterpieces are fakes, but it is a very well done replica of a rare trilobite species. This is a very affordable…

Home Igneous Sedimentary Metamorphic Rock Cycle Turritella Classification: Phylum Mollusca Class: Gastropoda Order: Mesogastropoda Family: Turritellidae The genus Turritella is first known from strata of the Upper Cretaceous, 80 Million Years Ago and still exists in seas today. It is found in fossil form worldwide. They are medium sized Sea Snails that have tightly coiled…

Home Igneous Sedimentary Metamorphic Rock Cycle Vanadinite Vanadinite is a lead mineral colored by vanadium. Its typical occurrences are orange, bright red, brown, yellow-brown, yellow, greenish-brown or gray. Crystals may also be multicolored. It may have the same structure and crystal shape as Apatite with its hair-like or barrel-shaped crystals found in the oxidized zone…

Home Igneous Sedimentary Metamorphic Rock Cycle Amber Unlike other types of fossils, amber fossils are three-dimensional, with life-like colors and patterns. Even the internal structures of cells may be intact. Often, insects were caught by the resin in active poses, along with their predators, prey, and internal and external parasites. Many new species of fossilized…

Home Igneous Sedimentary Metamorphic Rock Cycle Vesuvianite aka Idocrase Vesuvianite, also known as idocrase, is a fascinating yellow, green, brown, or blue silicate mineral found originally on the volcano, Mt Vesuvius (where it got one of its names). The other name, idocrase, is from the greek and means mixed form, an allusion to its crystals…

Home Igneous Sedimentary Metamorphic Rock Cycle Vivianite Vivianite is an iron phosphate mineral. It occurs as a secondary mineral found in a number of geological environments. It is usually found as deep blue to deep bluish green prismatic to flattened crystals. It is formed by the alteration of ore deposits near the surface, or of…

Home Igneous Sedimentary Metamorphic Rock Cycle Amazonite Amazonite (Sometimes called “Amazon Stone”) is a green to blue green (“turquoise looking” in color) variety of microcline that is suitable for carving and polishing. The perthite variety is a striped, veined or almost zebra-pattern stone, produced by lamellar intergrowths inside the crystal. The colored stripes are microcline…

Home Igneous Sedimentary Metamorphic Rock Cycle Volcanic Bombs USGS Western Region Geology and Geophysics Science Center The URL is http://pubs.usgs.gov/of/2004/1007/volcanic.html Page Contact Information: USGS Publications Team Volcanic bomb is a pyroclastic formation which was semi-molten (viscous) while ejected from a volcanic vent and is therefore shaped while in flight. The term “Volcanic Bomb” is a…

Home Igneous Sedimentary Metamorphic Rock Cycle Wavellite Wavellite is a hydrous basic aluminum phosphate and is a mineral that demonstrates the classic radiating globule (botryoidal) crystal habit. It is agreed that Wavellite is the most referenced type mineral for this habit. The habit produces a unique effect when the globules are embedded in limestone and…

Home Igneous Sedimentary Metamorphic Rock Cycle Wolframite Wolframite is one of the most highly sought after collector minerals. Good specimens of the tungsten ore wolframite are hard to find. It is mined mostly in quartz veins and areas with granite intrusions. It is heavy and has the ability to conduct heat. Wolframite is made up…