100 results for amethyst

What is Rock Tumbling? Rock tumbling is a fun way of polishing multiple semiprecious gemstones simultaneously in a rock tumbler. A rock tumbler is a piece of equipment that has a plastic or rubber-li ...

In Part 1 of my All About Macrocrystalline Quartz series we discussed the basics of Macrocrystalline Quartz: science, nomenclature, varieties, and uses. In Part 2 we discussed Quartz crysta ...

Origin of Names for Rocks and Minerals How do rocks and minerals get their names? Rock and Mineral names can be traced quite often to Greek and to Latin. It is common practice to add an "ite" to ...

What is my state's official state rock, mineral, or fossil?   Alabama designated Hematite as the state mineral in 1967, Hematite as the state rock in 1969, and Star Blue Quartz as the state ge ...