I have a science project due may 24. I wanted to do it on crystals but i know nothing about them.Any afcts?plz
353122
I did this as a kid...  grow your own crystal garden!\n\nhttp://chemistry.about.com/cs/growingcrystals/ht/charcoalgarden.htm\n\n\nhttp://chemistry.about.com/od/crystallography/
437370
Hi!  This has been my fav. site when it came to doing science projects so far.  http://www.stevespanglerscience.com/index.php\nRemember to call your local papers and have a write up done on it so you have a good turn out for the crowd.  Good luck!
149062
The question is not clear.  Are you asking what a crystal is?  Are you asking what the different crystal structures are?  Are you asking for the characteristics of crystals in general?
1129625
Here are some potential sources:\n\nhttp://www.bestcrystals.com/ulexite.htm\n\nhttp://www.northwestnatureshop.com/department/Rocks_and_Minerals/Rock_and_Mineral_Specimens/592.html\n\nI'm sure you could find more if you googled it like I did.
1018103
http://www.crystalxp.net/galerie/en.id.130.htm
304001
I suggest that you create a supersaturated solution first. Reason being that the more highly saturated the solution, the better the formation of the crystal and the larger the end product. This can easily be done by heating your solvent to a very high temperature and stiring in copious amounts of whatever is going to make up your crystal. Lower the heat as it goes and you should idealy end up with a very viscous solution, not so much of a liquid but more to the kind of stuff you get when you mix a bit of cornstarch with water. Thereafter dump everything in a beaker or bowl and suspend a thin wax thread in the solution itself. Cover up the bowl and leave to set for a few days. If you have done it correctly you should see a very nice, large crystal forming. Just a note though, don't let the thread touch the bottom of the bowl or even any thing other than the solution, or your crystal will be lopsided
1005644
Theoretically one can grow as big monocryistals as he have material...\nBut I am not sure that it is possible in practice...\n\nand besides, it would cost too much, and today, no one really needs such a big Crystal (they use big ones in lasers, but not 30ft. ones).\n\nyou can have some molecular physics book to see the technology, which is based on a principle, that in certain circumstances the atoms of Crystal get oriented, and if you have those circumstances (temperature, humidity, pressure etc.) you will have  a monocrystals
174049
I'd like to encourage you to learn chemisrty instead. The alchemists tried and tried to make lead into gold and similar things. Now we know that it cannot be done. They wasted their time. Don't waste yours. Learn and make something of yourself.
468395
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
455972
There are many crystal shapes.  The standard is an elongated six sided coming to a pyramid like point at the top.  Some, however, are double terminated (have points at both ends). Some (such as garnets) have six sides, but are flat on top and almost roundish looking.  Others, such a mica, are in flat layers.  Others still, can come in cubes (such as pyrite)  Some crystals have no particular shape at all (globular)(such as malachite).  So there is no one particular crystal shape.
909392
Crystal "defects" can be due to imputities. This is common with diamonds.
808544
Man did u luck out running into me, go to www.sciplus.com "American science and surplus", all sorts of abandon science projects, factory over runs, cancelled government orders, motors, solar cells, weird stuff in the science dept, it's a mad doctors dream come true, CHEAP TOO ! check it out, you'll find lots of "COOL" stuff, that has many uses ! I did a hydro-electric demonstration of power application, that was so small, I could do it in a lab sink, E-mail me if you want an "A", it's an easy experiment, inexpensive, looks very sophisticated, yet simply displays the hydro-electric properties of producing low cost, hydro-electric power, using no battery's or electric for assistance, just water, so it's completely SAFE ! works on displaying milli-amps of D.C. power, yet you are still producing (at a very low voltage) power.
182140
i'M IN SIXTH GRADE, AND A GOOD SCIENCE FAIR TOPIC WOULD BE "WHICH SUBSTANCE CONDUCTS ELECTRICITY BEST". iT IS REALLY EASY TO DO AND YOU CAN HAVE LOTS OF GRAPHS. FOR EXAMPLE I HAVE 21 GRAPHS. AND MY WHOLE ENTIRE BOOK IS 93 PAGES LONG. \n\nHOPE i HELP YA!!
598642
Contact your nearest craftsperson who produces such enamel, or your nearest university or speciality school. You may even be able to find information through a local mineral and gem organization.
946575
How about visiting this site:\n\nhttp://www.all-science-fair-projects.com/category0.html
65413
I am not going to pick any of those choices because I don't believe any of those are correct, including streak. What you are describing is crystal structure, which might be related to color and streak, but since trace impurities in a mineral often determine color, and streak is nothing more than the color of a powdered form of the mineral I don't think It will be determined by atomic structure with certainty.  Most streaks are white!\n\nCleavage would be a correct answer but it was not included above. Cleavage and crystal structure are closely related properties. \n\nWhat you have described is the crystal structure. All minerals can be classified within 14 basic crystal lattice arrangements of the atoms in three dimensions. These 14 lattice arrangements fit within 7 larger crystal systems, allowing the classification of atomic structure of all known minerals.  To see diagrams of these go here:\nhttp://en.wikipedia.org/wiki/Crystal_structure
922588
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!