Black Obsidian is a natural volcanic glass with a smooth, glossy black surface. It is an easy choice for a bold modern display and works well with neutral interiors, books, candles or lighter-coloured crystals. For a first piece, choose a tower for a simple shelf display or a sphere for a more sculptural look.

Choose the shape first

• Tower: compact, upright and easy to display on a desk or shelf.
• Sphere: smooth, rounded and ideal for a stand or tray.
• Double-terminated point: a more geometric option for a collector or styled display.
• Pyramid or carving: a strong decorative choice for someone who likes defined shapes.

What should you expect from a natural piece?

Black Obsidian is usually deep black and highly reflective when polished. Because it is volcanic glass, small surface marks, reflections and natural variation can appear under strong light. Check the actual product photos so you can see the polish, shape and edges clearly.

Pick a practical size

• Small: a low-risk gift, compact desk piece or small shelf accent.
• Medium: versatile for a bedside table, shelf or display tray.
• Large sphere or tower: a main decorative object that creates strong contrast in a room.

Buying checklist

1. Choose polished or raw appearance based on your décor style.
2. Check that towers have a stable base.
3. Use measurements and weight to judge the actual scale.
4. For spheres, make sure a stand is included or available.
5. Protect polished points and edges from hard knocks during display and transit.

In traditional crystal practice, Black Obsidian is often chosen as a grounding or protective symbol. This is a personal belief and decorative preference, not a health claim.

Browse our Black Obsidian collection to compare towers, spheres, points and carvings.

Frequently asked questions

Is Obsidian a crystal?

Obsidian is a naturally occurring volcanic glass. It is commonly collected and displayed alongside mineral crystals.

Should I choose a sphere or tower?

Choose a sphere for a rounded decorative centrepiece; choose a tower for a compact upright display.

Is Black Obsidian a good gift?

Yes. A polished small tower or sphere is easy to display and suits many interiors.