GIA’s laboratories use advanced instrumentation and research to deliver accurate grading, identification, and origin ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

For the most accurate body composition measurements, the gold standard would be a DEXA scan (dual-energy X-ray absorptiometry, best known for bone density testing). However, these are medical ...

When you first enter a new world, you can either spawn near a structure or find one while exploring any of the three dimensions. While finding some can be quite easy, others are extremely hard to ...

State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China State Key ...

The team believes that the structure was in use until the 8th century BCE, the middle of the period when the Kings of Judah ruled. A scarab seal from the 8th century BCE uncovered during the ...

The first step in USNCO, held each March. High school students can participate by registering with ACS. Registration does not guarantee participation. Students will be notified by their ACS Local ...

Hungary Department of Chemical and Environmental Process Engineering, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111 Budapest ...