Quick Facts on Indicolite Stone
| Chemical Formula |
: | Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4 |
| Mineral |
: | Tourmaline |
| Color |
: | Blue |
| Hardness |
: | 7.0 7.5 |
| Specific Gravity |
: | --- |

Indicolite
or Blue Tourmaline is supposed to be the most colorful and rare
variety of all gemstones. True blue Tourmalines are scarce as they
show a more or less clearly pronounced shade of green. They are
considered as distinct individual pieces desirable by the
collectors. A blue Tourmaline emanates a high degree of harmony and
are reported to bring about openness and tolerance. Indicolite is
one of the rarer varieties of elbaite. It is transparent to opaque
and is found in metosomatically altered magnesian or dolomitic
limestones in contact-metamorphic aureoles.
They are found in the classical Tourmaline country of Brazil,
Namibia, Afghanistan, Pakistan and Nigeria. Having successfully
passed the cutting procedure, Tourmaline proves a relatively robust
stone. The gem cutter must be aware of this pleochroisim in order to
maximize the color potential of the stone.