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Hi guys
I'm into rocks and minerals but I'm not a chemist
I can't really find a definition between ... chemical formula and Idealised chemical formula ?
example below of a mineral sample I purchased a few days ago
part info from ...
https://www.mindat.org/min-3760.html
Chemical Properties of Stellerite
Formula:
Ca4(Si28Al8)O72 · 28H2O
Idealised Formula:
Ca(Si7Al2)O18 · 7H2O
Now, as a non-chemist, I look at that and wonder about the significance between the two formula ?
how can the upper formula be reduced to the lower idealised formula ?
OK, one light just came on as I was writing this ... I note that everything in the top formula has been divided by 4.
So, my Q still remains, does this really affect the composition of the mineral ?
if not, as I suspect, why list it as the first when the second formula can be used ?Thanks Lots
Dave
I'm into rocks and minerals but I'm not a chemist
I can't really find a definition between ... chemical formula and Idealised chemical formula ?
example below of a mineral sample I purchased a few days ago
part info from ...
https://www.mindat.org/min-3760.html
Chemical Properties of Stellerite
Formula:
Ca4(Si28Al8)O72 · 28H2O
Idealised Formula:
Ca(Si7Al2)O18 · 7H2O
Now, as a non-chemist, I look at that and wonder about the significance between the two formula ?
how can the upper formula be reduced to the lower idealised formula ?
OK, one light just came on as I was writing this ... I note that everything in the top formula has been divided by 4.
So, my Q still remains, does this really affect the composition of the mineral ?
if not, as I suspect, why list it as the first when the second formula can be used ?Thanks Lots
Dave