How i know the differences between raw quartz and raw diamond?

I麓ve found a little stone, clear, like a raw quartz or raw diamond, How i know the differences? how can i test that? or be so sure that is quartz?


thanks|||You almost need to have a diamond tester. Quarts and diamond are very close together on the Moh's hardness scale and a proper identification can be difficult especially since they both form in a variety of colors (although diamond is always in light shades). Your specimen is likely too small to do a scratch test on and the streak is similar to quartz.





The differences; Diamond is carbon, quartz is silicon , diamond has a hardness of 10, quartz is between 7 and 8 depending on what quartzite mineral you are testing. And yes, quartz does come in clear crystals and all quartzite crystals are 6-sided. Diamond is rarely found in flat-sided crystals.





I have been told but never tried this test. A diamond will be invisible when dropped a glass container of kerosene.





Here is a link to a site for mineral identification which shows the properties on most minerals including diamond


http://www.minerals.net/index.html





Another way to get a positive ID is to take your specimen to a mineral show. Many major cities have at least one mineral show a year.They almost always have experts on hand who give free mineral identifications or will direct you to an expert in the field.


Many universities also have a geology department, perhaps you could get help there or as others have suggested, at a jeweler.


It is likely quartz since it is the most common mineral on the planet while diamond is one of the rarest.|||Check the hardness. Scratch them against a tile of glass, Diamond is harder than Quartz so it should have a greater scratch. Diamonds are 10 on the Mohs' scale of hardness and quartz are 7. Also try check the specific gravity. I'm not sure but I think Diamond has a greater specific gravity then quartz..|||steel will not scratch quartz, run whatever you have against a piece of glass, if it scratches, it is a diamond and if it doesnt its probablly quarts|||If I remember correctly, steel will scratch quartz, but not diamond.|||I don't think you'll find many diamonds lying around your neighborhood. Unless, of course, you live in a South African cave.|||Take it to a jewelry store...a mall one will do, they will be able to tell you.|||yeah just look up any kind of houshold item that can scratch quartz, it's a 7 on the hardness scale, diamonds an 10.|||If it's a diamond it can cut glass.|||quartz usually isnt as clear. and quarts dont grow in chunks. diamonds do.....