Tourmaline Mineral Collection - Height: 3 cm - Width: 3.5 cm- 16 g - (1)

06
days
12
hours
32
minutes
35
seconds
Current bid
€ 1
No reserve price
12 other people are watching this object
atBidder 0775 €1

Catawiki Buyer Protection

Your payment’s safe with us until you receive your object.View details

Trustpilot 4.4 | 122630 reviews

Rated Excellent on Trustpilot.

A green bi-coloured tourmaline specimen in a mineral collection form, from Pakistan, measuring 3 cm high, 3.5 cm wide and 1.5 cm deep and weighing 16 g.

AI-assisted summary

Description from the seller

Aesthetic tormaline specimen with green color that intensifies at the ends.
The formation of tourmaline is a fascinating geological story. It typically occurs in pegmatites, which form during the late stages of magma crystallization. As the magma cools, residual fluids rich in elements such as boron, lithium, and aluminum concentrate. These fluids crystallize, forming tourmaline. The distinctive color zoning, which resembles a watermelon, results from variations in chemical composition during crystal growth. Changes in trace elements like manganese create the pink core, while iron contributes to the green edge. This process, occurring over extended periods under specific temperature and pressure conditions, leads to the extraordinary bi-color tourmaline.

Aesthetic tormaline specimen with green color that intensifies at the ends.
The formation of tourmaline is a fascinating geological story. It typically occurs in pegmatites, which form during the late stages of magma crystallization. As the magma cools, residual fluids rich in elements such as boron, lithium, and aluminum concentrate. These fluids crystallize, forming tourmaline. The distinctive color zoning, which resembles a watermelon, results from variations in chemical composition during crystal growth. Changes in trace elements like manganese create the pink core, while iron contributes to the green edge. This process, occurring over extended periods under specific temperature and pressure conditions, leads to the extraordinary bi-color tourmaline.

Details

Number of items
1
Main Mineral
Tourmaline
Mineral Form
Mineral Collection
Weight
16 g
Country of Origin
Pakistan
Height
3 cm
Width
3.5 cm
Depth
1.5 cm
ItalyVerified
340
Objects sold
92.86%
Private

Similar objects

For you in

Minerals & Meteorites