|
Name of the Mineral
|
Tourmaline
|
|
Chemical formula
|
(Ca,K,Na,[])(Al,Fe,Li,Mg,Mn)3(Al,Cr, Fe,V)6 (BO3)3(Si,Al,B)6O18(OH,F)4
|
|
Length/Longest Diameter (cm)
|
L:4,H:4,W:5
|
|
Description (Colour, habit, form, hardness, lustre,Streak, feel,Twinning, Cleavage, Fracture any special property)
|
black clour, twinned crystals with well developed prisms and pyramids.
|
|
Class
|
Silicates
|
|
Sub-class
|
Cyclosilicates
|
|
Crystallographic Details
|
Trigonal System
|
|
State/Country
|
Australia
|
|
Photo Link
|
CHQ_CCU_GSI_MUS_0363
|
|
Date of Photography
|
11/17/2016
|
Tourmaline
Tourmaline belongs to Rocks and Minerals Gallery