Choose a Black Obsidian tower for a standing outline or a sphere for a rounded display with a stand. Compare reflections, edges and support requirements; a glossy black photograph alone does not establish the material.
How do I check a glossy black piece before buying?
Ask for side-lit photographs showing the surface, point and base. Reflections can conceal a scratch or make a smooth surface look marked. A second angle helps clarify what you are seeing without using destructive home tests.
Choosing for your space or gift
For a minimal shelf, compare the tower's base with the shelf depth. For a centrepiece, include the sphere stand in the footprint and keep it away from an edge where it could roll.
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
- Choose polished or raw appearance based on your décor style.
- Check that towers have a stable base.
- Use measurements and weight to judge the actual scale.
- For spheres, make sure a stand is included or available.
- 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.
Compare listed pieces and measurements
These examples were checked on 4 October 2026. Measurements below come from the product names; read each listing for the full dimensions, price, selection method and current availability.
| Piece | Listed measurements and selection |
|---|---|
| Black Obsidian Tower | Polished Black Stone 5–10cm | 5–10cm Check listing for selection and natural variation |
| Black Obsidian Sphere | Polished Black Crystal Ball | See listing for measurements and options Check listing for selection and natural variation |
If an individual piece has sold, browse the current collection and compare the replacement piece's own photographs and details.
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.
More questions before you choose
Does a Black Obsidian sphere need a holder?
Yes. Plan a secure, correctly sized holder and check whether it is included in the listing. The sphere's diameter does not include the stand's footprint.
Does a shiny black surface prove a stone is Obsidian?
No. Different materials can look similar in photographs. Use the seller's material disclosure and seek qualified identification when needed rather than relying on shine alone.
Continue with our Obsidian identification limits and buying checks.