Forums: Diamond Simulant

MURFREESBORO, Ark., - A Missouri man said he discovered a 4.89-carat diamond at Arkansas' Crater of Diamonds State Park. Mack Evans, 67, of Diamond, Mo., said he discovered the jellybean-sized jewel, which officials said is the largest found at the park so far this year, during a recent visit to the state park, which is the world's only diamond producing site open to the public, the Joplin Globe reported Thursday. Evans said most diamonds form a single crystal, but his find was an aggregate of multiple crystals. "I almost threw it away," Evans said. "I had seen a lot of...

By melting and resolidifying diamond, scientists explain how such liquid diamond oceans may be possible.Oceans of liquid diamond, filled with solid diamond icebergs, could be floating on Neptune and Uranus, according to a recent article in the journal Nature Physics. The research, based on first detailed measurements of the melting point of diamond, found diamond behaves like water during freezing and melting, with solid forms floating atop liquid forms. The surprising revelation gives scientists a new understanding about diamonds and some of the most distant planets in our solar system. "Diamond is a relatively common material on Earth, but...

I purchased a Diamond All-In-Wonder HD video card to replace a Radeon HD that had failed on me. I have a pc that I use specifically for watching blurays and hdtv rips, connected to my tv via HDMI. It's not really important to me if the tuner works but I did pay for it and I can pick up free HD with a QAM tuner so I went to DMM's tech support site and put in a ticket. That was 9 days ago and it still hasn't even been viewed yet. They have a Live chat bar but it always...

This is one big diamond. This thing is the size of a chicken egg. It was discovered in South Africa. The 507.55-carat gem reportedly has "exceptional color and clarity." No value has been give yet for the

The reputation of diamond as the hardest material around is under threat. Researchers in China and the United States recently determined that two naturally occurring substances surpass diamond’s resistance to scratching and indentation. They calculated that the mineral lonsdaleite—made of carbon, like diamond—is 58 percent harder than its famous cousin. And wurtzite boron nitride beats diamond’s hardness by about 18 percent after being subjected to pressure, which alters its atomic bonds. Still, in the short term diamond will continue to dominate in practical applications such as saws, drill bits, and industrial abrasives, since the newly studied materials are extremely rare....

The Diamond The diamond appeared, a sight unlike any other Hypnotized, captivated by its beauty, all rational thought was smothered ...

A new ultra-hard form of carbon may exist between graphite and diamond.The structure of the new form of carbon resembles that of both graphite and diamond.Punchstock Carbon can exist in a form halfway between graphite and diamond, say researchers in China and the United States. And they believe this stuff is as hard as diamond itself.Yanming Ma of Jilin University in Changchun, China, and his colleagues think that the new carbon material they have predicted in theoretical calculations1 may have been made already, in 2003.At that time, Ho-kwang Mao of the Carnegie Institution of Washington in Washington DC, a co-author...

Two leading civil rights groups plan to file lawsuits Tuesday against the Bush administration over its domestic spying program.... The Center for Constitutional Rights plans to sue on behalf of four lawyers at the center and a legal assistant there who work on terrorism-related cases at Guantánamo Bay, Cuba,... Similarly, the plaintiffs in the A.C.L.U. lawsuit include five Americans who work in international policy and terrorism, along with the A.C.L.U. and three other groups.... One of the A.C.L.U. plaintiffs, Larry Diamond, a senior fellow at the Hoover Institute, ... Also named as plaintiffs in the A.C.L.U. lawsuit are the journalist...

New evidence unearthed in France's National Museum of Natural History shows beyond reasonable doubt that the Hope Diamond is the same steely-blue stone once sported by the Sun King, they said. Mineralogist Francois Farges, heading an investigation published in a peer-reviewed French journal, told AFP he was now "99 percent sure" that the Hope and the mythical Blue Diamond of the Crown were one and the same. "The evidence corroborates a scenario under which the diamond, after being stolen in Paris in 1792, was swiftly smuggled to London, where it was recut," he said. The Blue Diamond came from a...

A Baton Rouge, LA woman visiting Arkansas' Crater of Diamonds State Park in Murfreesboro found an apparently flawless 2.09-carat white diamond the size of a tooth. Rhonda Bankston reportedly says she found out about the park's surface diamond prospecting on a show about finding cash and treasure. She was into her second day of prospecting by surface searching over a newly plowed field with friends when she spotted the gem. The park is located on the eroded surface of the world's eighth largest diamond-bearing deposit and visitors pay a fee to surface search there.