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Search Results - Gemstones, Gemstones - Tourmaline

your search of 'Gemstones, Gemstones - Tourmaline' has 3 results.

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Image courtesy Greg Grace | Figure 1. Chrome tourmaline | Figure 2. Paraíba

Gemstones
Tourmaline: Indicolite, Verdelite & Paraiba

While the red hues of rubellite maintain a steady appreciation, the interest and value of blue and green tourmaline was reignited with the discovery of ‘Paraíba’ tourmaline, STACEY LIM reports. Read more »
Image courtesy Gia Edu | Red tourmaline (Left) | Pink tourmaline (Right)

Gemstones
Colour investigation: Tourmaline - Part I

Boasting an array of colour and colour combinations unrivalled by any gem species, one can find tourmaline in shades of almost every hue. Throughout history this gem was often confused with other minerals until tourmaline was identified as its own mineral species in the 1800s. STACEY LIM reports. Read more »
Figure 1. (left) Inclusion consisting of a liquid phase with a vapour bubble. Figure 2. (right) Polariscope-revealed inclusion

Gemstones
Understanding inclusions: part 5 tourmaline

Always colourful, always durable; tourmaline is a jewellery-industry favourite. JUNE MACKENZIE reports. Read more »

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Saturday, 25 January, 2020 03:45am
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