what are crystals and is it true that even wood is consist of crystals,what form of crystals are found in wood
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All solid-state substances exist in one of three forms:\n\ncrystalline\nsemi-crystalline\namorphous\n\nCrystalline solids are ones in which there is long-range ordering (1000's of nanometers) of the molecules into a regular structure.  Semi-crystalline ones have some crystal-like order for small sections (10's or 100's of nanometers), but, over a long-range, are not ordered.  Amorphous solids have no structural ordering of molecules.\n\nWood is made of many different sustances, some of which I'm sure are crystalline and some amorphous.  I'm not sure about the specific composition, however.
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Wow, this would take a book to explain in detail!  I'll try to explain as briefly as I can. \n\nMost minerals are crystals*.  \n\nCrystals are basically formed by an arrangement of atoms in a pattern that repeats itself in 3D.  They start as a small cluster of atoms which grows into a recognisable crystal as more atoms are attracted by the electrical forces of those already in the crystal structure.  \n\nCrystals are formed mainly from molten solids (such as in molten magma) and solution (in water) and less often, from vapors (i.e. gases).  \n\n* Some minerals are not crystalline.  E.g. Opal, Obsidian.  These exhibit an amorphous character, meaning they have no crystal form or structure.  \n\nHope that helps a little!
151094
Glass is a manmade material that is made of melted sand that has been shaped and molded. Crystals are naturally occouring mineral formations caused by extreme pressure and heat from rock layers when the crystals are formed. They are similar (in that they can both be caused by heat), but one is natural and one is manmade. Crystals also have much more magical energy.
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crystals@whidbey.com \n\nthere you go :)
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The atomic and molecular structure of each mineral determines the crystal shape. Each mineral is composed of a specific molecular compound, and those molecules arrange themselves in an ordered fashion based on their structure that will form a crystal.  \n\nThese regular and repeating groups of molecules and atoms form a unit that is known as a lattice. There are 14 lattice groups (Bravais lattices), which fall into six (some crystallographers use seven) different crystal systems. Each crystal system includes the different rotation and reflection symmetries around a fixed lattice point. \n\nTo make this all more confusing, and to the horror of most mineralogy students there are also 32 different crystal classes. Each crystal class is a different and unique set of symmetrical forms.\n\nTo see illustrations of Bravais Lattices go here:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/solids/bravais.html\n\nFor a more detailed explanation go here:\nhttp://dave.ucsc.edu/myrtreia/crystal.html#INTRO
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Here are a few images I found for you of raw or rough crystal in it's natural form.\n\nhttp://images.search.yahoo.com/search/images?p=rough+crystal+&ei=UTF-8&fr=sfp&x=wrt\n\nhttp://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Draw%2Bcrystal%26ei%3DUTF-8%26fr%3Dsfp%26x%3Dwrt&w=301&h=250&imgurl=www.chinasupply.net%2Fen%2Ficeland%2Fraw.jpg&rurl=http%3A%2F%2Fwww.chinasupply.net%2Fen%2Ficeland%2Fspar2.html&size=26.3kB&name=raw.jpg&p=raw+crystal&type=jpeg&no=14&tt=432&ei=UTF-8
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Please correct you English, teacher will fail you on that alone, or should.\nAs per your question, teak wood will float or not depending on moisture content,so will most other wood. There are at least two kinds of stone that float.\nYou need to be more specific in what you want.
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Most crystals form three basic shapes: simple cubic, body-centered cubic, and face-centered cubic.  Simple cubic has molecules at each corner of a cube, body-centered cubic has molecules at each corner of a cube and one in the center, and face-centered cubic has molecules at each corner of a cube and one in the center of each face.
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Gemstone quality crystals can be made into jewellery and so are vauable. Others are useful for their ores (hematite Fe2O3 iron ore, malachite copper ore etc.) I also heard somehing about using crystals for resonance but I'm not sure what that means lol hope this helps\n\nP.S. Quartz ie. silicon used for glass
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It is trees or wood that has been buried and due to the time and the type of enviornment that it was in, the wood was replaced by quartz minerals mimicing the wood grains and structure.  It is a case of mineral repalcement
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http://www.waynesthisandthat.com/crystals.htm
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a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice. The spacing between unit cells in various directions is called its lattice parameters. The symmetry properties of the crystal are embodied in its space group. A crystal's structure and symmetry play a role in determining many of its properties, such as cleavage, electronic band structure, and optical properties.\n\n\nThe crystal structure of a material is often discussed in terms of its unit cell. The unit cell is a spatial arrangement of atoms which is tiled in three-dimensional space to describe the crystal. The unit cell is given by its lattice parameters, the length of the cell edges and the angles between them, while the positions of the atoms inside the unit cell are described by the set of atomic positions (xi,yi,zi) measured from a lattice point.\n\nFor each crystal structure there is a conventional unit cell, which is the smallest unit that has the full symmetry of the crystal (see below). However, the conventional unit cell is not always the smallest possible choice. A primitive unit cell of a particular crystal structure is the smallest possible unit cell one can construct such that, when tiled, it completely fills space. This primitive unit cell does not, however, display all the symmetries inherent in the crystal. A Wigner-Seitz cell is a particular kind of primitive cell which has the same symmetry as the lattice.\n\n\nfor further clarifications go to the site listed
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They probably are used for the same thing, but in the first, the water molecules are part of the crystal and found in repeated and regular levels.\n\nIn the interstitial, the water molecules may not be present in the same level in all the crystals and the level can not be predicted.
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All meatals are made up of crystals of pure metal and other elements from which they are made up from (for example Cast Iron has iron, carbon, sulphur + others.)\n\nThese crystals vary in size, the small regular sized ones making the material generally tougher and harder than if it had larger more irregular shaped crystals which are generlly "softer" and less tough.\n\nOur piece of metal, say a round bar, can be worked through hammering and reheating into a a flat bar.  To work it, it needs to be fairly maleable, that is has fairly large crystals irregular shaped, as it is hammered these crytals are broken down into smaller more regular shaped crystal and becomes more and more difficult to work.  This is work hardening.\n\nTo continue working it the metal would be reheated and allowed to soak allowing the crystals to regrow into larger more irregular shaped ones, the work process can then start again.\n\nWork hardening can also be applied to make cutting edges on sharp instruments, leaving the rest of the material more maleable so not shattering on impact, while allowing the cutting edge to be hard enought to penetrate the surface.
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wood, leaf, meat and ... are called organic materials and are mainly consist of Carbon(C) and hydrogen(H). you can also find oxygen(O) in most of these materials
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Crystal Energy et Active H\n\nSouriez à la vie et la vie vous sourira. ^---^
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Cellulose is the substance that makes up most of a plant's cell walls. Cellulose is usually described by chemists and biologists as a complex carbohydrate. Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen that function as sources of energy for living things. Plants are able to make their own carbohydrates that they use for energy and to build their cell walls.