Digital BW, The Print

That's right and they can kill Superman too.



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Christopher L. 
Johnston" <chris@j...> wrote:
>
> Small correction from a rock head:
> 
> Zeolites are not a mineral in the sense that quartz or halite is a 
mineral
> rather they are a class of minerals or a mineral group with 
variable
> structures within a set of chemical and physical limits. They are 
classified
> as tectosilicates and compositionally they are framework hydrous
> aluminosilicates. They are characterized by open channels of a 
uniform size
> at an atomic level, hence there use in industry in everything from 
petroleum
> to kitty litter as molecular sieves.
> 
>  
> 
> Christopher L. Johnston
> 
> Johnston-Namibia c.c.
> 
> PO Box 354
> 
> Omaruru Namibia
> 
> chris@j...
> 
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> [Non-text portions of this message have been removed]
>