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Latest Crystallography Stories

2014-07-02 23:05:23

July is ruby month and the LC is celebrating by showcasing their best rubies. Austin, TX (PRWEB) July 02, 2014 The ruby is the official birthstone of July and LC is excited to announce that they will be showcasing their best ruby collection all month long starting with their Royal Rubies TV event, beginning on Wednesday, July 2 from 12 p.m. to 8 p.m. CT. For thousands of years, the ruby has been considered one of the most valuable gemstones on Earth. It has everything a precious stone...

2014-06-30 08:24:12

The Ophir Sapphire is included in the sale of a larger collection of gemstones that has been awarded nine Guinness World Records titles ATLANTA, June 30, 2014 /PRNewswire/ -- Ophir Collection, LLC has announced that the Ophir Collection of rare gemstones (http://www.OphirCollection.com) is available for sale. The collection has been awarded nine GUINNESS WORLD RECORDS(R) titles. Photo - http://photos.prnewswire.com/prnh/20140627/122449 Photo -...

2014-06-21 23:03:09

Containing the world's largest gemstones, the Ophir Collection (http://www.OphirCollection.com), owned by Ophir Collection LLC, has been awarded nine GUINNESS WORLD RECORDS® titles. Atlanta, GA (PRWEB) June 21, 2014 Containing the world's largest gemstones, the Ophir Collection (http://www.OphirCollection.com), owned by Ophir Collection LLC, has been awarded nine GUINNESS WORLD RECORDS® titles. A total of 40 rare and exquisite gemstones are included in the collection,...

2014-06-10 23:16:34

The video is presented by Coast 2 Coast Video Distribution. Toronto, ON (PRWEB) June 10, 2014 Coast 2 Coast Mixtapes announces the release of the “Left Back” music video by Malachite. The project, presented by Coast 2 Coast Video Distribution, is now available for view on YouTube. The single is produced by Sunset6 Productions, beat by Iceburg, and features Jasmine Gullison. Malachite, born Henry Busili, is an emcee, poet, musician, producer from Toronto, Canada. Born into a musical...

2014-06-06 23:07:38

Rissa Cassandra enchants her readers with ‘Sapphire’s Glow’. VICTORIA, Australia (PRWEB) June 06, 2014 An exciting tale of young adult fantasy and romance awaits readers everywhere in author Rissa Cassandra’s new novel, “Sapphire's Glow.” It is the story of a skeptical young woman’s coming of age, juxtaposed with her realization that she is different from the other girls, when she discovers the unique nature of her family tree and ends up on the run from a clan of...

2014-06-05 23:06:33

The fourth annual Midwest Soil Improvement Symposium is scheduled for August 13, 2014 in Manhattan, KS. The one-day event features research and practical information about using gypsum for agriculture. It is sponsored by GYPSOIL/BRM and the Kansas Agribusiness Retailers Association. Chicago, IL (PRWEB) June 05, 2014 Key industry experts will discuss the benefits of agricultural gypsum at the fourth annual Midwest Soil Improvement Symposium: Research and Practical Insights into Using...

2014-06-04 16:21:57

NEW YORK, June 4, 2014 /PRNewswire/ -- American Securities LLC, a leading U.S. private equity firm, announced that it has partnered with management and signed a definitive agreement to acquire Emerald Performance Materials, LLC from an affiliate of Sun Capital Partners, Inc. The transaction is expected to close in the third quarter of 2014 and is subject to customary closing conditions and regulatory approvals. Financial terms of the transaction were not disclosed. Based in Cuyahoga...

2014-05-19 23:07:46

GrandViewResearch.com has announced the addition of "Global Antimicrobial Coatings Market Analysis And Segment Forecasts To 2020" Market Research report to their Database. View Complete Report - http://www.grandviewresearch.com/industry-analysis/antimicrobial-coatings-market. San Francisco, California (PRWEB) May 19, 2014 The global antimicrobial coatings market is expected to reach USD 4,520.3 million by 2020, according to a new study by Grand View Research Inc. Growing demand...

2014-05-14 08:23:39

AKRON, Ohio, May 14, 2014 /PRNewswire/ -- Jared® The Galleria Of Jewelry, the leading off-mall destination specialty retail jewelry chain in the U.S., recognized for its amazing selection, has partnered with the Smithsonian, one of the world's most celebrated gemstone authorities, to introduce Earthly Treasures Smithsonian(TM). This new jewelry collection featuring highly treasured, richly colored, natural gemstones is now exclusively available at select Jared® The Galleria Of Jewelry...

2014-05-05 23:10:25

Diamond Envy now offers loose Zambian and Colombian emeralds and emerald jewelry for sale through their e-commerce website. New York, NY (PRWEB) May 05, 2014 Diamond Envy announces the debut of their natural Emerald Collection including both loose emeralds and emerald jewelry on their e-commerce site. Ethically sourced Zambian and Colombian emeralds are now available in beautiful rings, earrings and necklaces. Loose emeralds and matched pairs are also available to those who want to add...


Latest Crystallography 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_3f12abda63415a07ee5b6c5d30ef8239
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their association with the ores at the Carthinian iron mines. The type location for aragonite is Molina de...

28_acf3a79763725412768c5ca1b9da5c84
2005-05-26 12:12:27

Aurichalcite is a mineral, usually found as a secondary mineral in copper and zinc deposits. Its chemical formula is (Zn,Cu)5(CO3)2(OH)6. The name probably originates from the Greek oreichalchos meaning "mountain copper".

28_8002f27f8f96dedfc5d591fb18ec14b5
2005-05-26 09:41:33

The mineral kyanite is an aluminium silicate of the sillimanite group (along with andalusite and sillimanite), also called alumino-silicate. It has the formula Al2O3·SiO2 (Al2SiO5). Its hardness varies widely depending on its crystallographic direction, from 5 to 7.5, and it has a specific gravity of 3.56-3.67. It is translucent, usually blue, but possibly white, gray, green, or black. It is usually found in long-bladed crystals or columnar to fibrous structures. Kyanite is used in...

28_2e75b7b4202fc44cb88f662db2bba1fc
2005-05-26 09:37:09

Limonite Limonite is a ferric hydrate of varying composition, the generic formula is frequently written as FeO(OH)·nH2O, although this is not entirely accurate as Limonite often contains a varying amount of oxide compared to hydroxide. Together with hematite, it is mined as ore for the production of iron. Limonite is heavy and yellowish-brown. It is not a true mineral, however, but a mixture of similar hydrated iron oxide minerals, mostly Goethite. Limonite forms mostly in or near...

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Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.