Tourmaline Crystals Value Guide

This set of four raw tourmaline crystals from Pakistan showcases the natural beauty of boron silicate minerals found in igneous and metamorphic rocks. Prized for their unique crystal formations and diverse color range, these contemporary specimens reflect the Sinhalese meaning of 'turmali' or 'mixed gems'.

What affects the value of Tourmaline Crystals?

• The specific color saturation and variety across the four pieces in the set, as rarer hues command higher prices.
• The presence of well-defined crystal terminations and a lack of significant surface damage or abrasions.
• The clarity and transparency of the specimens, with fewer internal inclusions increasing the value for jewelry use.
• The total carat weight and physical dimensions of the crystals relative to the $150-$180 market range.

How to Identify Tourmaline Crystals?

• Observe the vertical striations running parallel to the length of the crystal, which is a hallmark of authentic tourmaline.
• Examine the crystals for pleochroism, where the color intensity or hue changes when viewed from different angles.
• Confirm the trigonal crystal system, which often results in a rounded triangular shape when viewed in cross-section.
• Verify the origin as Pakistan, a region known for producing high-quality specimens with distinct clarity and color zoning.

History of Tourmaline Crystals

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminum, iron, magnesium, sodium, lithium, or potassium. It is found in igneous and metamorphic rocks and is prized by collectors and jewelry makers for its wide range of colors and unique crystal formations. The name 'tourmaline' comes from the Sinhalese word 'turmali', meaning 'mixed gems', reflecting the mineral's varied appearance.