Tag Archives: expensive
Harlequin Opal: The Rarest and Most Expensive Pattern of Opal
Peacock harlequin Opal. Photo: Opal Auctions Harlequin OpalA variety of Precious Opal in which the play of color is arranged in a vivid harlequin, diamond-shaped, or rectangular-shaped pattern. This is an extremely rare pattern. Some stones may contain just a … Continue reading
‘Pink Star’ Diamond: the World’s Most Expensive Gem
A giant diamond named the “Pink Star” broke the world record for a gemstone sold at auction when it fetched $ 71.2 million in Hong Kong. The 59.60-carat “Pink Star”, the largest in its class ever graded by the Gemological … Continue reading
This Could Be the Most Expensive Tourmaline Ever
Credit: Astro Gallery of Gems IS THIS RARE Mineral WORTH $ 1.2 MILLION? Long ago, below the surface of what we now call Brazil, a slender blade of pink tourmaline, a semi-precious gemstone, pierced the top of a pink-and-blue tourmaline … Continue reading
World’s most expensive opal literally glows in the dark
Photo: Richard Lyons courtesy South Australian Museum Say hello to the ‘Virgin Rainbow,’ the finest opal ever unearthed Meet the “Virgin Rainbow” ? perhaps the finest and certainly the most expensive opal on record. It literally glows in the dark. … Continue reading
Optical approach offers faster, less expensive method for carbon dating
Researchers have demonstrated a new compact spectroscopic instrument that offers a highly sensitive optical method for detecting radiocarbon dioxide concentration, which can be used to carbon date fossils and archaeological artifacts. Paleontology News — ScienceDaily
Ancient oceans were exorbitantly expensive
(ANSAmed) – Rome, 19 NOV – the water of ancient oceans, especially the Atlantic was large, about twice what it is today is indicating research published in Nature and coordinated by the United States Geological Service. The discovery it has … Continue reading