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Latest Mineralogy Stories

2012-06-21 23:01:25

Emerald is one of the most popular gemstone that is extensively used in jewelry. Emerald Rings are especially popular with women, who tend to use them as their engagement rings. JewelOcean will start retailing Emerald Rings and Emerald Engagement Rings to its customers Baltimore, MD (PRWEB) June 21, 2012 Customers visiting JewelOcean.com, would find a variety of engagement rings and diamond rings, which are offered at cheap and affordable prices. However, JewelOcean has offered only a...

2012-04-05 21:20:05

Scientists have discovered the initial stages by which gypsum crystals form. Gypsum is a naturally occurring mineral which is often used in industrial processes and which in nature, if left alone for thousands of years, can grow into huge translucent, towering and eerie, crystals more than 10 metres tall. These are famed for their beauty in places such as the Cave of Crystals in Mexico. Nevertheless, the formation of gypsum has until now been largely unexplored. A study by researchers...

2012-03-29 21:53:32

Collaboration between the University of Southampton and the University of Cambridge has made ground-breaking advances in our understanding of the changes that materials undergo when rapidly heated. Using cutting edge equipment and specially designed MEM's sensors on loan from Mettler-Toledo, scientists from the University of Southampton's Optoelectronic Research Centre and the University of Cambridge's Department of Materials Science were able to probe the behavior of phase change memory...

2012-02-09 08:00:00

The use of gemstones in skincare products is one of the hottest trends in the industry. Several mainstream product lines contain gemstone extracts -- some even include microparticles of gold. Elina Gemstone Elixirs offer an organic, all natural alternative. These handmade gemstone serums contain bio-energized infusions of diamonds, sapphires and emeralds blended with unique herbs, mushrooms and other organic ingredients. Chicago, IL (PRWEB) February 09, 2012 For thousands of years,...


Latest Mineralogy Reference Libraries

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2005-05-26 12:19:41

Amphibole defines an important group of dark-colored rock-forming inosilicate minerals composed of double chain SiO4 tetrahedra linked at the vertices and generally containing ions of iron and/ or magnesium in their structures. In chemical composition and general characteristics they are very similar to the pyroxenes and, like them, fall into three series according to their system of crystallization. The chief difference between amphiboles and pyroxenes is in cleavage: amphiboles form oblique...

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2005-05-26 11:59:32

he mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earth's surface. It is a common constituent of sedimentary rocks, limestone in particular. It is also the primary mineral in metamorphic marble. It also occurs as a vein mineral in deposits from hot springs, and also occurs in caverns as stalactites and stalagmites. Calcite is often the primary constituent of the shells of marine organisms (e.g. plankton,...

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2005-05-26 11:56:59

Celestite (SrSO4) is a mineral consisting of strontium sulfate. The mineral is also known as celestine and is named for its occasional delicate blue color. Celestite occurs as crystals, and also in compact massive and fibrous forms. It is mostly found in sedimentary rocks, often associated with the minerals gypsum, anhydrite, and halite. The mineral is found worldwide, usually in small quantities. Pale blue crystal specimens are found in Madagascar.

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2005-05-26 11:32:33

Chalcocite, copper(I) sulfide (Cu2S), is an important copper mineral ore. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3. It is a sulfide with an orthorhombic crystal system. Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the oxidation zone of copper deposits as a result of the leaching of copper from the oxidized minerals. It is...

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2005-05-26 11:30:45

Chert is a fine-grained silica-rich cryptocrystalline sedimentary rock that may contain small fossils. It varies greatly in color from white to black, but most often manifests as gray, brown, grayish brown and light green to rusty red; its color is an expression of trace elements present in the rock, and both red and green are most often related to traces of iron (in its oxidized and reduced forms respectively). It outcrops as nodules in limestone, chalk, and dolostone formations as a...

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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.