tourmalines

In any case, I believe tourmalines are not the most expensive.

It also has a junior club for young mineral collectors called the Tourmalines.

Irradiation is almost impossible to detect in tourmalines, and does not, currently, impact the value.

There are also yellow tourmalines, sometimes known as canary tourmaline.

A young drone with a white tunic caught by a belt of tourmalines had called my name.

Some other tourmalines will appear very different colors if viewed in different angles.

The salver and cups of the initial pile had vanished; the tourmalines lay on the ground.

During the early 1900s, Maine and California were the world's largest producers of gem tourmalines.

Watermelon tourmalines are usually sliced on the cross section and both sides polished to a high sheen.

Those tourmalines have a hardness of only seven, I should say a trifle under, for a fine steel file will bite them.

All they had was diamonds, rubies, tourmalines and emeralds.

The pink color of tourmalines from many fields is the result of prolonged natural irradiation.

In fact, during the Victorian era, black tourmalines were put into jewelry worn by women in mourning.

It was a cold night, and the stars shone like diamonds, sapphires, rhinestones, tourmalines.

Newry is known for its tourmalines, Black Mountain for aquamarines.

An exception was the fine dravite tourmalines of Yinnietharra, in western Australia.

Magnesium-rich tourmalines, dravites, are generally restricted to schists and marble.

Amethysts and tourmalines are gaining in popularity.

Heavily-included tourmalines, such as rubellite and Brazilian paraiba, are sometimes clarity-enhanced.

At L. Tardif, most settings are in 14-carat gold and the tourmalines used are pink or green.

Four hundred and ninety-five tourmalines in shades of pink, fuchsia, blue, red and green are on display.

Copper in the crystals gives the tourmalines a bright turquoise color that had never been seen before in the gems.

The latest stones of interest are tourmalines from the state of Paraiba in northeastern Brazil.

Certain stones such as rubies, sapphires, tourmalines and topaz are optically anisotropic.

Shopping Sparkling tourmalines, topazes, aquamarines and amethysts come from the interior of Brazil.