What are the  physical properties of minerals?
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I'm going to turn to Wikipedia's definition of a mineral first because I like it (I quote)\n\n"To be classified as a "true" mineral, a substance must be a solid and have a crystal structure. It must also be an inorganic, naturally-occurring, homogenous substance with a defined chemical composition.”\n\nWhat does this mean in terms of your question? There are countless different physical properties of minerals, but you must understand that a couple of key things make a mineral fit the definition. It must be inorganic (Encarta is just wrong here- petroleum and coal are not minerals in any sense and are organic compounds that came from living organisms) . It must have a consistent and homogenous chemical structure (another reason coal and oil don't qualify). It must be naturally occurring. Chemists can make lots of compounds in the laboratory that don't occur naturally. So the most important properties are the chemical composition which must not be a mixture (like a rock has). Obsidian has a consistent chemical structure but because it has no crystal structure it is considered a mineraloid, not a mineral. Cristobalite crystals may occur within obsidian, and cristobalite is thus considered a mineral. Another example of how crystal structure determines a mineral is to compare calcite and aragonite. Both have the exact same chemical formula, calcium carbonate. Because they have different crystal structures they are different minerals. \n\nSo the short answer:\n1. inorganic\n2. crystal structure \n3. chemical homogeneity\n4. naturally occurring\n5. solid
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Physical:\nLight and strong material. \n\nChemical:\nCorrosion resistant. Soluble in some acids. Has a high melting point.
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chemical properties:  high electro negativity\nphysical properties:  it's a halogen
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Remember the defintions of "chemical" and "physical" properties!\n\nPhysical are those that can be experienced by the senses (sight, smell, taste, hearing, touch). Chemical are those in which the chemical reaction creates a new material; however, it has become accepted practice to use "chemical property" to define a material's behavior at a set of known conditions (temperature, humidty, pressure, etc). \n\nThe site given lists just about everything you'd want to know about Nitrogen; from it, you should be able to answer some of the basic "physical" characteristics and pull what you need for the chemical ones.\n\nLike I've answered before - since the definition of "chemical" has evolved over the years, you need to decide for yourself which ones best answer your query.
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1. Crystals\n\n2. Covalent bonds\n\n3.  Molecules\n\n4.  Vasoline\n\nCrossword = nucleuss\n\nH- Ion
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a physical property is something you can see or measure.  stuff like temperature, or color.
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1. Color. This can vary based on the amount or type of impurities in the mineral, or because of different ratios of certain elements such as (Mg,Fe)[X]Si[8]O[22](OH)[2] in amphiboles - the X and the ratio of Mg to Fe can vary.\n\n2. Index of Refraction. This is the change in angle of light passing through the mineral, and can be changed by anion content just like the color.\n\n3. Crystal shape. This can actually be completely different in an alteration mineral than the pure crystallized form. i.e. mineral formed from alteration of pyroxene can retain the crystal (hexagonal) form which may be completely different than the shape it would have if it crystallized out of solution or in a magma chamber.
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the basic building blocks of all rocks, minerals, liquids, and gases are chemical elements, which are made up of various combinations of atoms. For example, when lead atoms combine with sulfur atoms, the mineral galena is formed.\n\nA mineral is a naturally occurring solid with a definite chemical composition and crystal structure. Rocks are naturally occurring solids composed of one or more minerals. Rocks are identified by the minerals they contain and are grouped according to their origin into three major classes: sedimentary, igneous, and metamorphic. Each group is subdivided on the basis of texture and mineral composition\n\ndoes this help?\n\nsupposedly you can.
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u should instead study the properties of different types of compounds like metals, covalent compounds, ionic, macromolecular. then go on to the types of bonds which will explain their physical properties. then apply what u learn to any compund u come across.
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There is a whole battery of scientific tests used in mineral identification today however there are a number of tests that have been in use for a very long time which still work well.\n1) Observation - what does it look like, colour, the streak it leaves on an unglazed tile. the weight in your hand etc.\n2) Hardness. Its resistance to being scratched by a range of other minerals (Moe's scale)\n3) Density - how much it weighs compared to the same volume of water.\n4) The shape and form of its crystals.\n5) Chemical analysis.\nIf you put these together with a lot of experience there are not many minerals you cannot identify.
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A chemical properties
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Like all elements, its physical state depends on temperature and pressure. It is a liquid at room temperature, but can be frozen and evaporated at extreems.\n\nIt freezes at -38.83 °C, -37.89 °F\nIt boils at 356.73 °C, 674.11 °F
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Properties\n==========\n\nPhase gas \n\nDensity (0 °C, 101.325 kPa)\n        1.429 g/L \n\nMelting point 54.36 K\n              (-218.79 °C, -361.82 °F) \n\nBoiling point 90.20 K\n             (-182.95 °C, -297.31 °F) \n\nHeat of fusion (O2) 0.444 kJ/mol \n\nHeat of vaporization (O2) 6.82 kJ/mol \n\nHeat capacity (25 °C) (O2)\n              29.378 J/(mol·K) \n\nPromotes rapid combustion\n\nEssential to respiration of living being\n\nCommon existance as a diatomic molecule with the formula O2\n\nCan be toxic at high relative concentrations
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Crystal Silimanite\n \nMolecular Weight (g/mol.) 162.04558 \nApparent Density (g/cm3) 3.24 \nBulk Density (g/cm3) 3.24 \nMelting Point (°F) 3290 \nBoiling Point (°C)   \nSurface Area (m2/g)   \nThermal Conductivity (cal/s-cm-°C)   \nMohs Hardness @20°C 6 - 7 \nSpecific Gravity (g/cc) 3.2 \nParticle Shape   \nScreen Analysis   \nCrystallography orthorhombic \n\n\n\nFrom what i am reading they are the same
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General \nName, Symbol, Number osmium, Os, 76 \nChemical series transition metals \nGroup, Period, Block 8, 6, d \nAppearance silvery, blue cast\n \nAtomic mass 190.23(3) g/mol \nElectron configuration [Xe] 4f14 5d6 6s2 \nElectrons per shell 2, 8, 18, 32, 14, 2 \nPhysical properties \nPhase solid \nDensity (near r.t.) 22.61 g/cm³ \nLiquid density at m.p. 20 g/cm³ \nMelting point 3306 K\n(3033 °C, 5491 °F) \nBoiling point 5285 K\n(5012 °C, 9054 °F) \nHeat of fusion 57.85 kJ/mol \nHeat of vaporization 738 kJ/mol \nHeat capacity (25 °C) 24.7 J/(mol·K) \nVapor pressure P/Pa 1 10 100 1 k 10 k 100 k \nat T/K 3160 3423 3751 4148 4638 5256 \n \nAtomic properties \nCrystal structure hexagonal \nOxidation states 8, 6, 4, 2, -2\n(mildly acidic oxide) \nElectronegativity 2.2 (Pauling scale) \nIonization energies 1st: 840 kJ/mol \n2nd: 1600 kJ/mol \nAtomic radius 130 pm \nAtomic radius (calc.) 185 pm \nCovalent radius 128 pm \nMiscellaneous \nMagnetic ordering  ? \nElectrical resistivity (0 °C) 81.2 nΩ·m \nThermal conductivity (300 K) 87.6 W/(m·K) \nThermal expansion (25 °C) 5.1 µm/(m·K) \nSpeed of sound (thin rod) (20 °C) 4940 m/s \nShear modulus 222 GPa \nPoisson ratio 0.25 \nBulk modulus 462 GPa \nMohs hardness 7.0 \nBrinell hardness 3920 MPa \nCAS registry number 7440-04-2 \nNotable isotopes \nMain article: Isotopes of osmium iso NA half-life DM DE (MeV) DP \n184Os 0.02% >5.6×1013y α 2.966 180W \n185Os syn 93.6 d ε 1.013 185Re \n186Os 1.58% 2.0×1015y α 2.822 182W \n187Os 1.6% Os is stable with 111 neutrons \n188Os 13.3% Os is stable with 112 neutrons \n189Os 16.1% Os is stable with 113 neutrons \n190Os 24.6% Os is stable with 114 neutrons \n191Os syn 15.4 d β- 0.314 191Ir \n192Os 41.0% Os is stable with 116 neutrons \n193Os syn 30.11 d β- 1.141 193Ir \n194Os syn 6 y β- 0.097 194Ir \n \nReferences \nOsmium is a chemical element in the periodic table that has the symbol Os and atomic number 76. A hard brittle blue-gray or blue-black transition metal in the platinum family, osmium is the densest natural element and is used in some alloys with platinum and iridium. The extraordinary density of osmium is a consequence of the lanthanide contraction. Osmium is found native as an alloy in platinum ore and its tetroxide has been used to stain tissues and in fingerprinting. Alloys of osmium are employed in fountain pen tips, electrical contacts and in other applications where extreme durability and hardness are needed.\n\nand real close to it is Iridium
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By "natural magnet", I assume you mean the mineral magnetite (Fe3O4).  At room temperature (and at temperatures below ~850 K) magnetite is a semiconductor, above ~850 K, it is behaves like a metallic conductor.\n\nThe resistivity of pure magnetite at room temperature is about 0.33 ohm*meter, which is close to that of pure germanium (=0.46 ohm*meter).  "Good" conductors of electricity (like metals) have resistivities less than about 10^-6 ohm*meter, while good insulators have resistivities greater than aabout 10^9 ohm*meter.  As you can see, at room temperature, magnetite lies somewhere in between.
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"A mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes" (Nickel, E. H., 1995).\n\nA rock can be composed of lots of different minerals