Geosciences
Recall that ice freezes at a specific temperature, whereas basaltic magma crystallizes over a range of at least 200°C of cooling (about 1200° to 1000°C). In a laboratory setting, Bowen … Read More
Cave of the Crystals or Giant Crystal Cave is a cave connected to the Naica Mine 300 metres (980 ft) below the surface in Naica, Chihuahua, Mexico. One of the … Read More
Amethyst is a purple quartz type (SiO2) and owes its violet color to irradiation, iron impurities and, in some cases, other transition metals, and the presence of other trace elements … Read More
“The most beautiful opal in the world” How the excavation of a disused mineshaft lead to the discovery of the million-dollar Virgin Rainbow, the “most spectacular piece of opal ever … Read More
Peridot Stone the world’s largest cut ever found is 311.78 carats (62.35 grams)! It was found on Zagbargad Island, Egypt, and is now located in the Smithsonian Museums, USA. Also, … Read More
How is Sunstone formed? Where to find Sunstone? What is an Oregon Sunstone? Is Sunstone a natural stone? How much is Sunstone worth? Sunstone Sunstone is a plagioclase feldspar that … Read More
Precious Metal A precious metal is a rare metal chemical element of high economic value that occurs naturally. Chemically, the precious metals tend to be less reactive than most elements. … Read More
The first gemstone weighed 9.27kg (20.43lb) while the second weighed 5.10kg (11.25lb). A small-scale miner in Tanzania has become an overnight millionaire after selling two rough Tanzanite stones – the … Read More
Coloradoite Coloradoite, also known as mercury telluride (HgTe), is a rare telluride ore associated with metallic deposit (especially gold and silver). Gold usually occurs within tellurides (e.g. Coloradoite) as a … Read More
In the harshest of environments in far-east Russia, Monash scientists have played a leading role in the discovery of a new mineral, which could revolutionise the future of the mining … Read More
