Similarly, some high-end materials, such as marble, require regular maintenance. Calacatta quartz countertops, meanwhile, are appealing to many homeowners who are about to embark on a renovation ...

How Big Are Rhinos Vs. Lions? There are two species of rhinos living in Africa, the black rhino and the white rhino. The rhino in the video above appears to be a white rhino. White rhinos are more ...

Pure quartz crystals have been spotted on Mars for the first time, as well as other gems like opal. Researchers say these crystals, as well as being evidence of past hydrothermal activity ...

The newest Astron references run on Seiko’s 5X83 solar-powered, satellite-linked quartz movement. It is the latest in an evolution of electronic movements dating back to the original Astron, Seiko’s ...