I am fascinated by crystal minerals such as quartz, pyrite or the inside of
geodes. I have searched both povray and the www for information about
rendering examples as images or even animations. I have not found anything.

My knowledge is very limited in this area. I have found references to
crystaline structures of molecules, but that is not what I am looking for.

Here are some photograp examples, any suggestions on how to emplement
something like this in POVRAY?

http://en.wikipedia.org/wiki/Image:Pyrite_foolsgold.jpg
http://en.wikipedia.org/wiki/Image:Amethyst.bed.750pix.jpg

Thanks,
Leef_me

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"Leef_me" <nomail@nomail> schreef in bericht 
news:web.46a84c705fa25c98892adb1d0@news.povray.org...
>I am fascinated by crystal minerals such as quartz, pyrite or the inside of
> geodes. I have searched both povray and the www for information about
> rendering examples as images or even animations. I have not found 
> anything.
>
> My knowledge is very limited in this area. I have found references to
> crystaline structures of molecules, but that is not what I am looking for.
>

You will need to know something about crystallography in order to build 
minerals. This site may be a good starting point: 
http://webmineral.com/crystall.shtml

Thomas

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This seems like the sort of thing that might turn
out OK by using "greebles".
By that I mean that you might randomly place a
bunch of individual crystal shapes together on
the surface of some object to get a jagged
crystal surface.

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"Tim Attwood" <tim### [at] comcastnet> schreef in bericht 
news:46a92349$1@news.povray.org...
> This seems like the sort of thing that might turn
> out OK by using "greebles".
> By that I mean that you might randomly place a
> bunch of individual crystal shapes together on
> the surface of some object to get a jagged
> crystal surface.

To make a geode for example? Yes, I think so.

Thomas

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