“Bringing The Past, Into the Future”

Northern Geological Supplies Ltd
Northern Geological Supplies Ltd

“Bringing The Past, Into the Future”


Pitchstone, a low grade variation of obsidian, often appearing a dull black or grey colour. These specimens come from Turkey and are available in various optional sizes.

This product is currently out of stock and unavailable.

SKU: IGNROK047 Category:

Pitchstone is a glassy rock similar in appearance to obsidian but with a duller colouration. Like obsidian, it is formed by volcanic activity when lava makes contact with water. It is suggested pitchstone forms with higher water content than obsidian, this results in it not having a conchoidal fracture like obsidian, and is more blocky. Well known locations of pitchstone in the UK include the Isle of Arran and An Sgùrr, Eigg, Scotland. These particular samples come from Turkey and are limited.

Additional information

Weight 130 g
Specimen Size

, , , ,


There are no reviews yet.

Be the first to review “Pitchstone”

Your email address will not be published. Required fields are marked *