|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
WATERMELON TOURMALINE SLICE
MEMBER OF iNTERNATIONAL COLOURED ASSOCIATION COMMITED TO FULL DISCLOSURE OF STONES WITH A MONEY BACK GUARANTEE.
This is a stunning slice of tourmaline which has been polished both sides showing a beautiful pink tone.Mined in Brazil.
Mohs scale 7 - 7.5
Weight 4.76 cts app
Size 14 x 2 mm app
Tourmaline is a crystal silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline gem stones come in a wide variety of colors.Tourmaline has a variety of colors. Usually, iron-rich tourmalines are black to bluish-black to deep brown, while magnesium-rich varieties are brown to yellow, and lithium-rich tourmalines are almost any color: blue, green, red, yellow, pink etc. Rarely, it is colorless. Bi-colored and multicolored crystals are common, reflecting variations of fluid chemistry during crystallisation. Crystals may be green at one end and pink at the other, or green on the outside and pink inside: this type is called watermelon tourmaline. Some forms of tourmaline are dichroic, in that they change color when viewed from different directions.
|Starts||25th Mar 2014 4:23pm PDT|
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