Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly without crystal growth. Pure obsidian is usually dark in appearance, though the colour varies depending on the presence of impurities. Iron and magnesium typically give the obsidian a dark green to brown to black colour. A very few samples are nearly colourless. In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern (snowflake obsidian). It may contain patterns of gas bubbles remaining from the lava flow, aligned along layers created as the molten rock was flowing before being cooled. These bubbles can produce interesting effects such as a golden sheen (sheen obsidian) or a rainbow sheen (rainbow obsidian).
Hole Size = 1mm approx
Delivery starts from as little as 95p (First Class only £1.95) and we aim to dispatch all orders within 48 hours.
Free First Class delivery is available for UK orders over £25 and free Courier delivery for UK orders over £150.
Want your order quick? Try our Next Working Day delivery service for £6.50, guaranteeing your order for the next working day if placed before 10am.
We also ship internationally from as little as £3.00, simply select your country at the checkout. Is your country not listed? Contact us and let us know!
Click here to find out more about our Delivery Prices and services.
We pride ourselves in offering a high level of customer service (and love to talk about beads!) so feel free to get in touch. Our friendly customer service team is available Monday to Friday 10am-1:30pm. If you would like to speak to us in person, you can call us on 0161 274 4040. Alternatively, please email us at email@example.com or click here to contact us via our contact form.
We look forward to hearing from you!