Bi-Color, Tri-Color & Multi-Color Tourmaline
The best of all worlds in any light!
These unique Tourmalines let you have two or more colors for the price of one gem!
Bi-Color, Tri-Color, Multi-Color or Watermelon are terms used for Tourmalines with 2 or more colors.
Significant changes going on in the environment where these crystals grew explain the distinct or subtle changes in color along the length of the crystal.
Tourmalines are part of a family of closely related mineral species with the same crystal structure but with different chemical and physical properties.
Species of Tourmaline include elbaite, dravite, uvite, schorl and liddicoatite.
Since tourmaline grows in long crystals referred to as “pencils” they are frequently cut as elongated emerald cuts that are perfect for pendants, earrings and even some rings. This cut is frequently the best choice to distinctly display 2 or more colors present in one crystal.
Tourmalines are found in many different locations around the world including Brazil, Nigeria, Mozambique, USA (California, Maine), Congo, Tanzania, and has one of the widest color ranges found in gemstones.
Tourmaline is one of the birthstones for October and celebrates the 8th Anniversary.
Lots of choice in colors for October birthdays!
We have many more colors, shapes and sizes available in Bi-Color, Tri-Color, Multi-Color and Watemelon Tourmalines – please contact us if you don’t find what you are looking for in our online inventory.
many attractive combinations available including
light pink/dark pink
light peach/dark peach
RI = 1.624 (+/-0.005) – 1.644 (+/-0.006) DR
SG = 3.06 (-0.05, +0.15)
Dispersion = 0.017
Hardness = 7-7.5
suitable for use in jewelry
Pyroelectric – becomes electrically charged when heated
Can be 100% natural with no treatments or enhancements, or heated, or
see policy on Treatment Disclosure
Usually colored by iron and/or titanium and Manganese, but also by color centers within the crystal structure
Stone colors can be described in percentage (%) terms, e.g. 60% green 40% red
Calibrated sizes up to 8mm
All standard cuts and free sizes
Brazil, Nigeria, Mozambique, Zambia, Afghanistan, USA, and other localities worldwide