#38 I think the name "Quartz" would be great for your mineral water, because : - It is a transparent mineral. - This name is sophisticated but short, it can easily be remembered and said in different languages. - It evoques luxury, something precious but natural.
I can see the letters "quartz" being transparent on your bottle, to let us see the water behind. I chose the grey colour (could be with silver) to match with the bottle's cap and to give a unique look.