What is the world's most expensive mineral?
478447
I think it's Diamond...
39488
Worth of course depends on how many people are wanting to buy it.  On of the best sources to get it out there and seen is to take a picture of it and sell it on ebay.  There is a huge huge demand for minerals/crystals of that nature on there.  I know because I buy alot of my crystals on there.  See if htat works for you.
242438
Fool's gold (pyrite) is a lot more common.  Being rare makes things more expensive. Plus there's not much you can do with pyrite, although it does grow naturally in cool shapes like squares and octahedrons.
843681
Si is the most abundant mineral element, but feldspar would be the most abundant mineral as far as rocks & minerals. Quartz comes in second.
32045
According to the Mohs scale, diamond is the hardest mineral.  I believe that a harder mineral can scratch a softer mineral as well as itself.  So that would work.
552288
rocks are made up of minerals
1013566
For common metals, iron is pretty much all you have.  Magnetite is an oxide of iron that is the about the most magnetic metal on earth.\n If you are looking for low weight, rare earth magnets are the way to go, but will cost you accordingly.  Neodymium or Samarium-Cobalt are your best bets there.
800554
Where would you get that many stones?
653314
Coal, iron ore, copper, chromium, antimony, mercury, gold, barite, borate, celestite (strontium), emery, feldspar, limestone, magnesite, marble, perlite, pumice, pyrites (sulfur), clay, arable land, and hydropower.
841826
http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/expensive17.html
716527
Good question? I think it comes from platinum. A bar of pure platinum would be really expensive.
9102
1. lord of the rings, trilogy (estimated to be 298$ million)\n2. superman returns (estimated to be 250$ million)\n3. king kong 2005 (estimated to be 207$ million)\n4. titanic and spiderman 2 (estimated to be 200$ million)\n5. waterworld (estimated to be 175$ million)\n\nthis is until now, but: harry potter and the goblet of fire, will be the most expensive movie ever made. the film which starts production in april, will cost an estimated 308$ million!
603021
A Corundum Ruby cause it's #9 om the hardness scale of minerals right under diamonds #10.
274557
'Expensive' is the word that denotes high cost. When peiople describe someone as having 'expensive taste' they mean that he/she buys branded, thus expensive stuff. Yes, you are right, whatever the argument, that word accounts for 'money talks'.
976972
Hello there,\n\nAnswer is zirconium.\n\nYou can take this to the bank.
754137
Laser - also the most expensive
961539
My brain? just kidding,\nphenakite?\ncalcite?\nquartz?\nnumber one choice= aragonite!\ndolomite\ngypsum\nor maybe a combination of calcite and dolomite\n\nWhy the curiosity? Precious gem!\n(congrats on the 2000 points)