|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
TOURMALINE ROUGH SPECIMEN
This WATERMELON rough specimen has two of the most sought after colours in Tourmaline GREEN and PINK
TOURMALINE BIRTHSTONE FOR OCTOBER.
NATURAL UN HEATED
MINED IN BRAZIL
MOHS SCALE 7-7.5
WEIGHT 162.4 CTS
SIZE 30X 29X 23.4 MM
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||24th May 2017 8:02pm PDT|
|Ends||25th May 2017 8:00pm PDT|
|Registered Shipping||$15.00||10 Days|
|Standard Shipping||$4.00||21 Days|
|Shipping Insurance all providers $7.09 (optional)|