What is Bastnasite used for?
Rare-earth elements found in bastnaesite can be used to produce magnets in speakers, microphones, and vibration motors in mobile phones and other high-technology communication devices.
What is the chemical formula for Bastnasite?
The mineral bastnäsite (or bastnaesite) is one of a family of three carbonate-fluoride minerals, which includes bastnäsite-(Ce) with a formula of (Ce, La)CO3F, bastnäsite-(La) with a formula of (La, Ce)CO3F, and bastnäsite-(Y) with a formula of (Y, Ce)CO3F.
Where is Bastnasite found?
Bastnaesite occurs in pegmatites near Pikes Peak, Colo. and with fluorite in Lincoln County, New Mexico; it is commercially mined at Mountain Pass, Calif. For detailed physical properties, see carbonate mineral (table).
How many earth elements are there?
Do you know all 17 elements? It’s a little tricky since one of them is usually not included because it is rare and unstable* and another does not occur in economic concentrations in the same geological settings**. Here they are in order of their atomic number on the periodic table.
What mineral is worth more than gold?
One of the most valued precious metals is rhodium. Rhodium prices are, in fact, far greater than gold prices. Due to its rarity, rhodium is only available in a fraction of the amount of gold.
How is xenotime formed?
Abstract. Xenotime (YPO4) is a trace component in many metasedimentary and some igneous rocks, altered rocks and many hydrothermal ore assemblages, where it forms in response to a range of different processes from igneous crystallisation to low-temperature early diagenesis.
Where is Euxenite found?
It is found in many locations worldwide, notably its type locality in Jølster, Sunnfjord, Norway. Other locations include the Ural Mountains of Russia; Sweden; Minas Gerais, Brazil; Ampangabe, Madagascar; Ontario, Canada; and in Arizona, Wyoming and Colorado in the US.
What is the chemical formula for bastnäsite?
Bastnäsite has cerium, lanthanum and yttrium in its generalized formula but officially the mineral is divided into three minerals based on the predominant rare-earth element. There is bastnäsite- (Ce) with a more accurate formula of (Ce, La)CO 3 F.
Is bastnäsite a rare mineral?
Although a scarce mineral and never in great concentrations, it is one of the more common rare-earth carbonates. Bastnäsite has been found in karst bauxite deposits in Hungary, Greece and the Balkans region.
What is the specific gravity of base bastnasite?
Bastnasite is a fluorocarbonate mineral involving about 65–75 wt% REO depending on the deposit. It is a paramagnetic mineral with a specific gravity of about 4.9–5.2 (g/cm 3 ). These properties enable it for magnetic and gravity concentration techniques.