What is magnetocrystalline anisotrophy?
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>>Theory of magnetocrystalline anisotropy\n\nThe direction of a magnetization relative to body that supports it is determined mainly by two effects, shape anisotropy and magnetocrystalline anisotropy. The first arises from magnetostatic effects and the second from spin-orbit coupling between the spins and the lattice of the material. The magnetostatic effects can be calculated from micromagnetic calculations, but the magnetocrystalline anisotropy must be computed from the electronic structure of the material. This is an important quantity because it determines whether a magnetic material can be made into a good hard magnet, a good soft magnet or neither. Hard magnets are an essential component of electromagnetic motors and soft magnets are an essential component of transformers.<<\n\nThe rest of that quote can be found in the source link:
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Phase - gas \nDensity  (0 °C, 101.325 kPa)\n9.73 g/L \nMelting point  202 K\n(-71 °C, -96 °F) \nBoiling point 211.3 K\n(-61.7 °C, -79.1 °F) \nCritical point 377 K, 6.28 MPa \nHeat of fusion 3.247 kJ·mol−1 \nHeat of vaporization 18.10 kJ·mol−1 \nHeat capacity (25 °C) 20.786 J·mol−1·K−1 \nVapor pressure P/Pa 1 10 100 1 k 10 k 100 k \nat T/K 110 121 134 152 176 211 \n \nAtomic properties \nCrystal structure cubic face centered \nOxidation states 0 \nElectronegativity no data (Pauling scale) \nIonization energies 1st: 1037 kJ/mol \nAtomic radius (calc.) 120 pm \nCovalent radius 145 pm \nMiscellaneous \nMagnetic ordering non-magnetic \nThermal conductivity (300 K) 3.61 mW·m−1·K−1 \nCAS registry number 10043-92-2 \nSelected isotopes \nIsotopes of radon iso NA half-life DM DE (MeV) DP \n211Rn syn 14.6 h Epsilon 2.892 211At \nAlpha 5.965 207Po \n222Rn 100% 3.824 d Alpha 5.590 218Po \n \n\n\nthis is what wikipedia had to say. hope it helps!
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Natural magnetic variations and decay.  It is like waves of variation.
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Magnetosomes are membranous bacterial organelles sharing many features of eukaryotic organelles. Using electron cryotomography, we found that magnetosomes are invaginations of the cell membrane flanked by a network of cytoskeletal filaments. The filaments appeared to be composed of MamK, a homolog of the bacterial actin-like protein MreB, which formed filaments in vivo. In a mamK deletion strain, the magnetosome-associated cytoskeleton was absent and individual magnetosomes were no longer organized into chains. Thus, it seems that prokaryotes can use cytoskeletal filaments to position organelles within the cell.
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This isn't the final answer, but it is a clue:\n\nhttp://www.thesheetmetalshop.com/pdf_manual/Problem1.pdf
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Magnetization of materials\n\nFerromagnetic materials can be magnetized in the following ways:\n\n* Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism.\n    \n* Placing the item in a solenoid with a direct current passing through it.\n    \n* Stroking - An existing magnet is moved from one end of the item to the other repeatedly in the same direction.\n    \n* Placing a steel bar in a magnetic field, then heating it to a high temperature and then finally hammering it as it cools. This can be done by laying the magnet in a North-South direction in the Earth's magnetic field. In this case, the magnet is not very strong but the effect is permanent.\nMagnetization of materials\n\nFerromagnetic materials can be magnetized in the following ways:\n\n* Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism.\n    \n* Placing the item in a solenoid with a direct current passing through it.\n    \n* Stroking - An existing magnet is moved from one end of the item to the other repeatedly in the same direction.\n    \n* Placing a steel bar in a magnetic field, then heating it to a high temperature and then finally hammering it as it cools. This can be done by laying the magnet in a North-South direction in the Earth's magnetic field. In this case, the magnet is not very strong but the effect is permanent.
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http://en.wikipedia.org/wiki/Magnetism
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A. Pyrite and magnetite are both from the same crystal system. That means they form crystals in a similar shape or pattern. They are both from the isometric system. They will both be blocky crystals but may not be exactly the same. Perfect pyrite crystals are cube shaped or diploidal (see:http://webmineral.com/data/Pyrite.shtml), and magnetite is an octahedron (see: http://webmineral.com/data/Magnetite.shtml).\n\nHardness of magnetite is 5 1/2-6 on Mohs scale and pyrite is 6- 6 1/2.  \n\nBoth have conchoidal fracture. (Quartz has conchoidal fracture in case you need to picture this)\n\nBoth have a similar density. Pyrite has a density of 4.8-5 g/cc and magnetite has a density of 4.95 gm/cc.\n\nBoth have a metallic luster. \n\nB. The best way to distinguish between them is to use a streak test. Magnetite will be grayish-black and pyrite will be greenish-black.\n\nThe other major difference is that magnetite will be naturally magnetic, and pyrite will not be. \n\n\nThe lesson here is to learn think of your different properties as sort of a tool kit. Decide which properties are useful and which ones will not be useful for the particular samples you are testing. Be sure to be familiar with all of the properties you can use. A list would be:\na. cleavage\nb. color (one of the least reliable)\nc. density\nd. luster\ne. fracture\nf. crystal habit (can be confusing because some minerals have several possible)\ng. hardness (know the hardness of common tests like a penny, a knife, a quartz crystal, glass, etc.)\nh. streak\ni. magnetism\nj. taste (best test for Halite or sylvite)\nk. There are lots more that involve using thin sections in a microscope, and X-ray diffractometer, etc.
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Intensity of current and magnetic permeability of the core.
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Magnetism is the property of magnetic materials to exert forces of certain objects, mainly iron and other magnetic materials; this force is known as the magnetic force.\n\nThe origin of this force is the movement of electrons or charged particles (ions) inside the materials.  When an electron spins around the atom's nucleus, according to the Biot-Savart Law it produces what we call a Magnetic Field, which exerts Magnetic Induction on it's surroundings.  Not only that, but also moving electrons in the surroundings of the original one (say, electrons of another object) will "feel" this induction as a force.\n\nSo, everything exerts a magnetic force on everything else, but the thing is that the magnetic induction and hence the direction of the force electrons in the surroundings will feel depend on the direction in which the original electron is moving (more specifically, on the vector Angular Momentum and/or the vector Magnetic Moment), and since there are lots of electrons moving in different directions in every material, the forces will point in every direction, cancelling themselves and producing a net force equal to zero.\n\nBut magnetic materials have the property of "aligning" the Angular Momentum/Magnetic Moments of all its atoms, and the forces produced by all its electrons (in the average) point in the same direction, producing the net force we feel when we put a magnet (magnetic material) near some piece of iron (a material susceptible to magnetism).\n\nHope I helped
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An electron, with its negative charge, is surrounded by an electromagnetic field. Normally, in most materials, this field is canceled out by the random positioning of all of the other electrons in the material. \n\nIf these electrons are aligned, the material will become a magnet with the magnetic fields aligned toward one end of the material.\n\nIf the electrons are traveling through the material (current or electrical flow) the magnetic field will be moving with the electrons and will surround the wire (refer to "right hand rule") \nIf the wire is coiled around a piece of iron, for instance, this magnetic field will become very strong and align the electrons in the iron - thus magnetizing the iron.
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Earth's magnetic field, among other things.
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It is Widmanstatten Structure, not Wandermanstateen, and is\na structure characterized by a geometrical pattern resulting from the formation of a new phase along certain crystallographic planes of the parent solid solution. The orientation of the lattice in the new phase is related crystallographically to the orientation of the lattice in the parent phase. The structure was originally observed in meteorites but is readily produced in many other alloys with certain heat treatment.\n\n\nU can go to find some links with the right spelling.\n:)
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See the listing of suppliers given in the source below.  If you want to do magnetic separation, you'll want multi-domain particles, which means using particles *larger* than about 100 nm (depending on the material).
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Log on to http://en.wikipedia.org/wiki/Magnet\n\nand check out Characteristics of magnetic materials
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All ferromagnets, lose their magnetic properties when they are heated above their respective CURIE temperatures..\nThey simply become paramagnetic and then diamagnetic...\nWhich is why god so gracefully put all curie temperatures above human temperatures...\nIf you goto superconducting temperatures, like 10 Kelvin, they also lose their magnetic properties cos their spins cant align properly... its called NEEL temperature..\nThere is a formula for the relationship between curie temp and magnetism, but i cant remember it right now (damn im gonna flunk next weeks test)\nAnyways, you dont have to worry about the magnetism to join 2 magnets..\nAll ferromagnets exhibit magnetism when they are in the BCC structure (Body Centered Cubic) You can just heat treat it, or use gas metal arc welding, or even oxy fuel  weldings, just see that the BCC structure does not get altered and no phase transformation takes place.\n\nCheers
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IT could be diamagnetic according to electron configuration from Chemistry. But without specific formula I would say your best bet is e nomagnetic.