On the California-Nevada border, just north of Reno, amethyst, citrine, and green quartz do occur together in clusters of crystals in detritus. These crystals, found lying loose in rocky and sandy ...

I have a light colored cluster that I was told was natural ... the laboratory Quartz is one of the most common minerals in nature,and the price of natural quartz is quite low Only the special colored ...

This amazing ametrine trilliant cut features a multitude of facets to create internal reflections that blend the amethyst and citrine colors. Photo by Robert Weldon/GIA, courtesy Minerales y Metales ...

Davos, Jan 22 (PTI) As many as 33 industrial clusters from 16 countries, including five from India, on Wednesday committed to economic growth, jobs creation, and emission cuts as part of the World ...

Ukraine has the "ambitious goal" to open five or six EU accession negotiation clusters in 2025, President Volodymyr Zelensky said on Jan. 15. Ukraine applied for EU membership at the onset of Russia's ...