
Multicolored tourmalines
Tourmalines are true miracles of color.

Often, Nature conjures up tourmaline crystals from which gemstones with a
particularly subtle multi-coloredness can be cut. You may well ask how that is
possible. Tourmalines are mixed crystals of aluminum boron silicate with a
complex and changing composition. It is a rather complex mineral group. Even
minor changes in composition cause completely different colors. And that is how,
on one and the same crystal, although it has grown quite naturally, completely
different colors can occur, mostly in elongated columns one above the other, as
if Nature had piled colored rings one on top of the other. The crystals
themselves can be as slim as a knitting needle or as thick as a man's thigh.
Some display coloration in which the shades vary only slightly, whilst others
have starkly contrasting colors or zones of color. Since tourmaline crystals
have often grown in close proximity to one another, their cross-sections can
also contain triangles, which are closely joined together and gathered around a
nucleus.
When
is a watermelon not a watermelon? When it is a gemstone!
Stones with two or more different, well-represented colors are particularly
desirable. Depending on their shape and color, these are known in the trade as
bicolored and multicolored tourmalines respectively. Some of them also have
rather interesting names: if, for example, the crystal is almost colorless and
just black at both ends, it is referred to fondly as a 'Mohrenkopf', (a kind of
cake popular in
The main deposits of tourmalines are in
Pure individuality

Tourmalines are popular not only in jewelry but also as therapeutic stones.
Thanks to their good energetic conductivity and their wealth of minerals, they
are said to have an invigorating and fortifying effect. They are uncomplicated
to work with and have excellent wearing qualities thanks to their good hardness.
Beautiful multi-colored tourmalines are particularly well suited to jewelry of
an individual design, for each of these stones is different. More than that,
indeed: practically each of the places where this gemstone is found - and it
occurs all over the world - has its own color variant. That does make life
somewhat difficult for the cutter if he has to look for several stones of the
same color; in fact even two stones cut from the same raw crystal often differ
in color. But then that is the charm of the tourmaline, and especially that of
the multi-colored tourmaline. Today, gemstones of this kind are very popular.
The knowledge that one is practically certain to be looking at a unique gem has
an inspiring effect on goldsmiths and designers alike, so they look forward to
working with this stone and making it the heart of some attractive, individual
jewelry creation.