Most people know some very basic information about minerals, crystals, and gemstones, but likely wouldn’t be sure about what ...

Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ordinary–like rocks. It's only when they are cut and polished that they obtain the ...

Petrology is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform them. Mineralogy is the study of the chemistry, crystal structure and physical ...

Some gemstones are also minerals, such as that classic rock diamond, but there are some gemstones that aren’t classed as minerals. A fancy example is pearl, a popular choice in the jewelry industry.

For members of the Worcester Mineral Club, the Earth's crust holds untold secrets, waiting to be discovered, and offering ...

The Atlas of Minerals and Igneous and Metamorphic Rocks in Thin-section provides the geology student and geoscientist with a stunning new color atlas of the main rock-forming minerals and igneous and ...

The rover's latest discoveries, including pure sulfur stones and sprawling mineral "spiderwebs," unravel new mysteries of ...

The majority of buyers are women, and most born after 1995, according to domestic media reports. Typically priced at around 20 yuan ($3), most pet rocks are just ordinary pebbles. However, some buyers ...

Kidney stones are pebble-sized deposits that form when there’s too much salt and minerals in your urine. Learn whether men or women are more at risk, what passing one feels like, and how big ...