At the precise moment I write this, there is information about 108,230,950 organic and inorganic chemical substances from the World's disclosed chemistry. So it was with a sense of curiosity that I came across this article in the American Mineralogist[1] entitled "Earth’s “missing” minerals" (the first in a series of articles apparently planned on the topic of the missing ones). The abstract is particularly interesting and whilst I encourage you to go read the article itself, I will quote some eye-catching observations from just this abstract:
Of course comparison with the whole of molecular chemistry is difficult; minerals are natural species, mostly formed I presume without the help of living organisms. Which makes me wonder what proportion of the 108,230,950 organic and inorganic chemical substances noted above occur naturally and have been formed without the help of living organisms. The latter of course are called "natural products", and there must be many millions of those.
Postscript. If you want to search for the crystal structures of minerals, this site is useful: http://database.iem.ac.ru/mincryst/
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