Bi-Color, Tri-Color & Multi-Color Tourmaline

TriColorTourmaline_eme_dome_13.9_12.4x7.5mm_5.83cts_c

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.

click here to see a selection of Bi-Color, Tri-Color & Multi-Color Tourmalines for sale

Colors

many attractive combinations available including

green/red

green/pink

blue/red

blue/pink

peach/pink,

peach/brown

pink/red

light pink/dark pink

light peach/dark peach

Family/Species

Tourmaline, Elbaite

Properties

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
Piezoelectric – becomes electrically charged when squeezed
Many modern higher-end hair dryer use tourmalines in them to prevent static!

Treatments

 Usually none

Can be 100% natural with no treatments or enhancements, or heated, or
irradiated and heated (heat treatment or irradiation is not common for Bi-Color, Tri_Color & Multi-Color Tourmalines)

see policy on Treatment Disclosure

Important information

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

Birthstone

October

Anniversary

8th

Cuts

Calibrated sizes up to 8mm

All standard cuts and free sizes

Mining locations

Brazil, Nigeria, Mozambique, Zambia, Afghanistan, USA, and other localities worldwide

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