Everyone knows about the California Gold Rush in the 19th century. However, today there is another phenomenon emerging in ...

Figure 1. The bright red faceted ruby in this gold ring is from the large and potentially productive Snezhnoe deposit in Tajikistan. Photo by Zamoniddin Z. Nasriddinov. Discovered during the late ...

In general, rough sex refers to sexual activity that includes some form of aggressive behavior. There is often a certain amount of pleasurable pain involved as well as fast and vigorous movement. It's ...

The timelessness of pearls’ beauty and the appeal they have been holding for people is undying. Besides the fact that pearls are appealing, they are considered valuable in astrology, healing and ...

Following up on Nassau's 1981 article on the technical aspects of heat treating ruby and sapphire, the author reports his personal observations of the actual heat treatment process in Bangkok. He ...