Search results
Results from the WOW.Com Content Network
Cacoxenite is an iron aluminium phosphate mineral [5] with formula: Fe 3+ 24 Al(PO 4) 17 O 6 (OH) 12 ·17(H 2 O). [4] Cacoxenite is associated with iron ores. [6] The name comes from the Greek κăκός for "bad" or "evil" and ξένος for "guest" because the phosphorus content of cacoxenite lessens the quality of iron smelted from ore containing it.
Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species. Within a mineral species there may be variation in physical properties or minor amounts of impurities that are recognized by mineralogists or wider society as a mineral variety.
Amethyst is a violet variety of quartz.The name comes from the Koine Greek αμέθυστος amethystos from α-a-, "not" and μεθύσκω (Ancient Greek) methysko / μεθώ metho (Modern Greek), "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. [1]
Citrine “A powerful gemstone crystal in a range of deep yellows, oranges, and yellow-cream-white, the citrine gemstone is said to bring abundance and wealth into one’s life,” Salzer says.
Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc.
An example of this is rose quartz. In Egypt, it was believed rose quartz could prevent aging , but the Romans used rose quartz as a seal to signify ownership , while in the Middle Ages it was used in healing potions, today rose quartz is known as the "love stone" and is used to balance emotions, and heal anger and disappointment.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Gemstone irradiation is a process in which a gemstone is exposed to artificial radiation in order to enhance its optical properties.High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1]