News tagged with blue gemstone
A blue gem for greener fuel
(PhysOrg.com) -- Sapphire, a brilliant blue gemstone most familiar in jewelry, may soon play an important part in making coal a cleaner fuel source.
Mar 19, 2010 |
4.2 / 5 (9) |
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Search results for blue gemstone
Colombia's tinted gold passes for precious stones
All that glitters is gold under a new thermochemical process developed by Colombian engineers for color-tinting the precious metal to make it look like sapphires, rubies or emeralds.
Apr 08, 2012 |
4.8 / 5 (4) |
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History shines through the glass
“All glass is beautiful,” Belgian researcher Patrick Degryse said, gently turning a delicate, Roman-era vessel, its bluish sheen glowing under the fluorescent lights of the Semitic Museum’s ...
Other Sciences / Archaeology & Fossils
Jun 14, 2011 |
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Diamonds not always a girl's best friend
With Valentine’s Day around the corner, jewelers are gearing up for a busy period as happy couples come shopping for the perfect engagement ring. Top of the list is the classic diamond, and this year there are more choices ...
Feb 11, 2011 |
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Gem of an idea: A flexible diamond-studded electrode implanted for life
(PhysOrg.com) -- Diamonds adorning tiaras to anklets are treasures but these gemstones inside the body may prove priceless.
Oct 05, 2010 |
4.1 / 5 (8) |
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Smart drug delivery system -- Gold nanocage covered with polymer (w/ Video)
In campy old movies, Lucretia Borgia swans around emptying powder from her ring into wine glasses carelessly left unattended. The poison ring is usually a confection of gold filigree holding a cabochon or ...
Nov 01, 2009 |
5 / 5 (5) |
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Hope Diamond's phosphorescence key to fingerprinting
Shine a white light on the Hope Diamond and it will dazzle you with the brilliance of an amazing blue diamond. Shine an ultraviolet light on the Hope Diamond and the gem will glow red-orange for about five ...
Jan 07, 2008 |
4.6 / 5 (5) |
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Understanding the origin of rubies and sapphires to improve prospecting strategies
Rubies and sapphires belong to the corundum mineralogical family. Corundums exist in a wide range of colours. They consist of aluminium oxide crystals containing impurities which dote them with their various tints: titanium ...
Space & Earth / Earth Sciences
Dec 03, 2007 |
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List of search results for blue gemstone
