[Rockhounds] Ink coloring minerals

[J Bryan Kramer]

Well there's Prussian Blue but I believe it is synthetic not naturally
occurring:

<http://en.wikipedia.org/wiki/Prussian_blue>

Iron salts are used in blue and black ink otherwise. I think it was made by
combining iron salt with oak extracts...yeah here it is:

<http://en.wikipedia.org/wiki/Iron_gall_ink>

BK

On 10/4/07, Lawrence Rush <larryrush at worldnet.att.net> wrote:
>
> I have an artist friend who is experimenting with home-made inks. She
> asked me for mineral samples which she could grind up to provide the
> coloring agent for these inks. I know the Native Americans used Hematite and
> Limonite to make "ochres", but the other colors they used for clothing dyes
> seem all to be organic and plant based. I have also heard of some minerals
> used for facial decor, such as eye-shadowing and rouge in the Middle Ages.
> But I couldn't come up with any soluble minerals that could color inks.
>
> Any suggestions?
>
> Thanks....Larry Rush
>
>
> "Noel Coward thought work was more fun than play,  but he never, ever
> worked in the mines"
>
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-- 
J Bryan Kramer
North Florida, USA
photos at:
http://pbase.com/photoburner


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