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Latest Mineralogy Stories

f4f75552563296f5d6098c05883b9df2
2011-07-25 11:45:00

Fool's gold is providing scientists with valuable insights into a turning point in the Earth's evolution, which took place billions of years ago. Scientists are recreating ancient forms of the mineral pyrite "“ dubbed fool's gold for its metallic luster "“ that reveal details of past geological events. Detailed analysis of the mineral is giving fresh insight into the Earth before the Great Oxygenation Event, which took place 2.4 billion years ago. This was a time when oxygen...

2011-05-16 16:11:33

On May 13th 2011, the journal Science publishes a paper where scientists from Risø DTU in collaboration with scientists from China and USA, report a new method for revealing a 3D picture of the structure inside a material. Most solid materials are composed of millions of small crystals, packed together to form a fully dense solid. The orientations, shapes, sizes and relative arrangement of these crystals are important in determining many material properties. Traditionally, it has only...

2011-04-25 00:00:03

Fans of mineral makeup who use the lids of their product jars to apply and mix their minerals are likely transferring oil and bacteria to their face "“ and to their original makeup container. Addressing this problem is Minerals Mate®, a new mixing and application palette for use with mineral makeup and other loose powders. It provides a secondary surface for working with foundations, blushes and other makeup treatments so users don't dip their brushes back into the powder supply or...

2011-03-03 17:08:00

VANCOUVER, March 3 /PRNewswire/ - Callinan Mines (TSXV: CAA) (OTCBB: CCNMF) is pleased to report that assay results have confirmed that DDH GOS 28 has intersected 5.94 grams of gold per tonne and 22.00 grams of silver per tonne over 14.77 meters at its Gossan Hill Property, Manitoba. Highlights from GOS 28 are included in the table below. _____________________________________________________ | |from (m)|To (m)|Core Width (m)|Au g/Mt|Ag g/Mt| | | |...

2011-02-25 11:05:00

VANCOUVER, Feb. 25 /PRNewswire/ - Callinan Mines (TSX.V: CAA) ongoing exploration program at Gossan Hill has intersected gold mineralization in each of 12 holes for which assay results have recently been received. The best results, in hole GOS 25, grade 9.73 grams of gold per tonne, and 6.91 grams of silver per tonne over a width of 5.75 meters. The gold intersection in DDH GOS 25 included a width of 3.35 meters grading 15.80 grams of gold per tonne, and 10.87 grams of silver per...

2011-01-16 00:23:26

As the New Year comes around, iGem Instruments brings in with it a new tool for the jewelry industry. Through an agreement with Presidium Instruments, one of the most well-known names in the field, iGem Corporation will exclusively offer the Presidium Refractive Index Meter (PRIM). East Brunswick, NJ (PRWEB) January 14, 2011 As the New Year comes around, iGem Instruments brings in with it a new tool for the jewelry industry. Through an agreement with Presidium Instruments, one of the most...

2010-12-21 07:00:00

GONGYI, China, Dec. 21, 2010 /PRNewswire-Asia-FirstCall/ -- China GengSheng Minerals, Inc. (AMEX: CHGS), a leading China-based high-tech industrial materials manufacturer producing heat resistant, energy efficient materials for a variety of industrial applications, today announced that it has received fracture proppant supply orders totaling $5.4 million from AMSAT International, a Florida-based technology company specializing in advanced ceramics. The Company will begin shipping product...

2b53a642bf6e6ecde3076058f76dbbe21
2010-11-23 06:24:48

Binghamton University researchers recently revived ancient bacteria trapped for thousands of years in water droplets embedded in salt crystals. For decades, geologists have looked at these water droplets "” called fluid inclusions "” and wondered whether microbes could be extracted from them. Fluid inclusions have been found inside salt crystals ranging in age from thousands to hundreds of millions years old. But there has always been a question about whether the organisms...

2010-09-14 18:33:57

Because one of the main bottlenecks in determining the structure of protein molecules is producing good isolated single crystals, improved crystallization techniques would be useful in a wide range of genomics and pharmaceutical research. Research reported in The Journal of Chemical Physics uses fluorescence correlation spectroscopy (FCS) to investigate the processes at the surface of a growing crystal. By focusing a laser on the crystal surface and measuring the resulting fluorescence, FCS...

2010-09-14 06:00:00

GONGYI, China, Sept. 14 /PRNewswire-Asia-FirstCall/ -- China GengSheng Minerals, Inc. (AMEX: CHGS), a leading China-based high-tech industrial materials manufacturer producing heat resistant, energy efficient materials for a variety of industrial applications, today announced that the Company has commercially launched its fine precision abrasive product, and has begun shipping product under its first three supply contracts. These initial sales are to companies in solar-related industries....


Latest Mineralogy Reference Libraries

28_9de5c05320ccdc491872fa501c117601
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...

28_9c404ab9a4754b403781670c9e631915
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,...

28_d2c55a2f2b1619323d50ee8c6db10bb5
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.

28_5f496c15049ba89cd8c43810810e311e
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...

28_56635877b282726a86b25cf3e98722c2
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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