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.
What is the rarest ore found on earth?
The main rare earth ores are monazite, bastnaesite and xenotime. Monazite is largely a light rare earth (La, Ce, Pr, Nd) phosphate (93–94%) and is often found as a component of mineral sands, which are usually mined primarily for ilmenite, rutile and zircon. Bastnaesite is even more dominantly a light rare earth (ca.
Where can you find Bastnasite?
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).
Where is bastnasite and monazite found?
Bastnasite ores contain mostly rare earths near the beginning of the series, La, Ce, Pr, and Nd.
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I.B. 2 Distribution of the Rare Earth Elements within the Various Ore Types.
| La2O3 | ||
| Bastnasite | (California) | 32.00 |
| (China) | 27.00 | |
| Monazite | (Eastern Australia) | 20.20 |
| (Western Australia) | 23.90 |
What is Gadolinite used for?
Uses: A minor source of rare earth metals and as mineral specimens.
What is the use of monazite?
Monazite Uses
Monazite is an important source of thorium, cerium, and other rare elements. It is often mined as a byproduct of heavy mineral deposits. Monazite sand is used in construction and casting.
What are the 7 rare earth elements?
Heavy and light rare earth elements: The rare earth elements are often subdivided into “Heavy Rare Earths” and “Light Rare Earths.” Lanthanum, cerium, praseodymium, neodymium, promethium, and samarium are the “light rare earths.” Yttrium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium.
Which country has most rare earth?
China
1. China. Unsurprisingly, China has the highest reserves of rare earth minerals at 44 million MT. The country was also the world’s leading rare earths producer in 2021 by a long shot, putting out 168,000 MT.
Is bastnaesite magnetic?
Detailed Description. 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.
Is thorium a rare earth metal?
Rare earth minerals are processed primarily from ores and minerals that naturally contain uranium and thorium.
Which state has highest thorium in India?
India has reserves of thorium in sufficient quantity as compared to other parts of world.
| State | Monazite (Million tonnes) |
|---|---|
| Odisha | 2.41 |
| Andhra Pradesh | 3.72 |
| Tamil Nadu | 2.46 |
| Kerala | 1.90 |
What is an interesting fact about gadolinium?
Here are some interesting facts about this metal: Gadolinium is silvery, malleable, ductile metal with a metallic sheen. It is fluorescent and tends to have a faintly yellowish tint. Gadolinium, like other rare earth elements, is not found in pure form in nature.
Where is gadolinium commonly found?
Gadolinium is one of the more abundant rare-earth elements. It is never found as free element in nature, but it is contained in many rare minerals. The main mining areas are Cina, USA, Brazil, Sri Lanka, India and Australia with reserves expected to exceed one million tonnes.
Where is thorium used?
As thorium is radioactive, its uses mainly lie in nuclear fuel applications. It is helpful in radiometric dating. Used as an alloying element in magnesium, to coat tungsten wire in electrical equipment. Used in manufacturing lenses for cameras and scientific instruments.
Does Ukraine have rare earth minerals?
Ukraine, in turn, is also among the most richly endowed European countries when it comes to rare earth metals and lithium reserves, with estimates of the value of these deposits ranging from $3 trillion-$11.5 trillion.
Which country has about 98% of the rare earth elements?
Over the past several decades, China has built up and cemented its dominance in global rare earths, and at its peak the country accounted for almost 98% of the world’s raw rare earths production.
How is rare earth created?
Rare-earth elements can be formed by volcanic activity, but many were first created in supernova explosions at the dawn of the universe, before Earth existed.
Why are there no thorium reactors?
Thorium dioxide melts at 550 degrees higher temperatures than traditional Uranium dioxide, so very high temperatures are required to produce high-quality solid fuel. Additionally, Th is quite inert, making it difficult to chemically process. This is irrelevant for fluid-fueled reactors discussed below.
Which country is rich in thorium?
Australia has the highest thorium resources with 489,000 tons followed by the US with 400,000 tons, Turkey with 344,000 tons and India with 319,000 tons. The remaining resources are found in countries like Venezuela, Brazil, Norway, Egypt, Russia, among others.
Which country is largest producer of thorium?
Thorium resources are found throughout the world, most notably in Australia, Brazil, India, and the United States. India has the largest resources (850,000 tons), followed by Brazil (630,000 tons) and Australia and the United States (600,000 tons each).
What is gadolinium used for in everyday life?
The major uses of gadolinium compounds include hosts for phosphors for fluorescent lamps, X-ray intensifying screens, and scintillators for X-ray tomography, and as a magnetic resonance imaging (MRI) contrast agent (in the form of water-soluble chelates).
How is gadolinium used today?
It is also used in alloys for making magnets, electronic components and data storage disks. Its compounds are useful in magnetic resonance imaging (MRI), particularly in diagnosing cancerous tumours. Gadolinium is excellent at absorbing neutrons, and so is used in the core of nuclear reactors.
How toxic is gadolinium?
Gadolinium is a rare earth metal that aligns with an MRI’s powerful magnetic field, but it is also toxic, so in its injectable form the metal is bound to chelating molecules to block its dangerous effects. Most of these molecules are then filtered through the kidneys and eliminated.
How toxic is thorium?
And there is research evidence that inhaling thorium dust increases the risk of lung and pancreatic cancer. Individuals exposed to thorium also have an increased risk of bone cancer because thorium may be stored in bone.
Which country has the most thorium?
Thorium resource estimates
| Country | Reserves |
|---|---|
| India | 963,000 |
| United States | 440,000 |
| Australia | 300,000 |
| Canada | 100,000 |