Latest Mineralogy Stories
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 â€“ and to their original makeup container.
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| | | |...
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.
As the New Year comes around, iGem Instruments brings in with it a new tool for the jewelry industry.
GONGYI, China, Dec. 21, 2010 /PRNewswire-Asia-FirstCall/ -- China GengSheng Minerals, Inc.
Binghamton University researchers recently revived ancient bacteria trapped for thousands of years in water droplets embedded in salt crystals.
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.
GONGYI, China, Sept. 14 /PRNewswire-Asia-FirstCall/ -- China GengSheng Minerals, Inc.
KNOXVILLE, Tenn., July 28 /PRNewswire/ -- Jewelry TelevisionÂ® (JTV), the world's largest retailer of loose gemstones, recently announced the premiere of Tanzanite: The One Generation Gemstone, a documentary-style DVD that explores the history, lore and mining of tanzanite, one of the world's highly sought-after gemstones.
Chemists from New York University and Russia's St. Petersburg State University have created crystals that can twist and untwist, pointing to a much more varied process of crystal growth than previously thought.
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...
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,...
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.
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 2Â½ - 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...
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...
- A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.