On 3/29/2011 5:06 PM, Alain wrote:

>>
>> Is there *any* chance the crystals might actually be calcite?
>
> No, calcite's basic formula is CaCO3 (calcium carbonate), while your
> cristals could be CaCl2 or some other nClx salts.
>

Oh well :(

I wonder if there's some way to grow calcite crystals using a saturated 
calcium carbonate solution. Acids and bases usually form salts, but 
there's got to be *some* way to do it. Even if it took years to grow a 
small grain, it would be worth it!

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