TOURMALINE SPECIMEN 

BURMA 

TREATMENT -NONE 

ON HOST MATRIX THIS IS A TOURMALINE IN ITS NATURAL HOST ROCK. THIS SPECIMEN WAS MINED IN BURMA AND IT IS A GREAT SPECIMEN OF PINK COLOUR-.TOURMALINE HAS A WIDE VARIETY OF COLORS. USUALLY, IRON-RICH TOURMALINES ARE BLACK TO BLUISH-BLACK TO DEEP BROWN, WHILE MAGNESIUM-RICH VARIETIES ARE BROWN AND YELLOW, AND LITHIUM-RICH TOURMALINES ARE PRACTICALLY ANY COLOR: BLUE, GREEN, RED YELLOW, AND PINK ETC. RARELY IT IS COLOURLESS. BI-COLORED AND MULTICOLORED CRYSTALS ARE RELATIVELY COMMON. REFLECTING VARIATIONS OF FLUID CHEMISTRY DURING CRYSTALLISATION. CRYSTALS MAY BE GREEN AT ONE END AND PINK AT EH OTHER, OUR GREEN ON THE OUTSIDE AND PINK INSIDE: THIS TYPE IS CALLED WATERMELON TOURMALINE. SOME FORMS OF TOURMALINE ARE DICHROIC, IN THAT THEY APPEAR TO CHANGE COLOR WHEN VIEWED FROM DIFFERENT DIRECTIONS.