Pink tourmaline
Tourmaline is an important group of complex gem-quality boron silicate minerals. This fine stone can be found in a multitude of colours : “from black to bluish-black, dark brown, yellow, medium brown, blue to neon blue, lime to dark forest green, red and reddish purple, yellow, pink, and colorless”. Most of the tourmalines are natural,…
Blue topaz jewelry
Topaz is an aluminium silicate containing fluorine and hydroxyl. Purely, it is colourless (white) ; it is the impurities which cause the variations of colour. “Topaz ranges from colourless to yellow, orange, red-brown, light to dark-blue, pink to red, violet and light-green.” Furthermore, Topaz is distinguished by its hardness and its perfect cleavage. This fine…
