|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
PINK TOURMALINE ROUGH
TOURMALINE BIRTHSTONE FOR OCTOBER.
NATURAL BUT OIL APPLIED TO THE ROUGH
MINED IN MADASGAR
MOHS SCALE 7-7.5
WEIGHT OF PARCEL 100.00 CTS
SIZE OF LARGEST PIECE 11 X 6 MM
We have taken a photo with the rough DRY
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||22nd Mar 2014 5:04pm PDT|
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