Polished Rainbow Obsidian sphere showing black volcanic glass with shimmering rainbow bands for root chakra protection.
Polished Rainbow Obsidian sphere showing vibrant iridescent bands for root chakra protection and self-reflection.
Polished Rainbow Obsidian sphere showing black volcanic glass with a subtle rainbow sheen, held for scale, 30-50mm size.
Polished Rainbow Obsidian spheres on wooden stands, showcasing black volcanic glass with shimmering, colorful root chakra bands.
Two polished Rainbow Obsidian spheres showing vibrant, iridescent bands of color for root chakra protection and reflection.
Polished Rainbow Obsidian spheres showing vibrant, iridescent color bands under light for root chakra protection.

Rainbow Obsidian Sphere

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Regular price$29.99
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🚚 Shipping $7.00 • Free over $100.00

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Size chart

Not sure which crystal sphere size is right for you? Use this guide to find your perfect fit. Weight estimates are approximate and vary based on the density of each crystal type. This guide covers sizes up to our largest available sphere at ~10 kg.

Crystal sphere size comparison chart showing sizes from 50mm to 200mm with sports ball references

Crystal Sphere Size Chart

All weights are estimates based on average crystal density. Actual weight may vary by stone type.

Diameter (inches) Diameter (mm) Approx. Weight
1 in. 25.4 mm ~100–150 g
2 in. 50.8 mm ~300–400 g
3 in. 76.2 mm ~600–800 g
4 in. 101.6 mm ~1,000–1,200 g
5 in. 127 mm ~1,500–1,800 g
6 in. 152.4 mm ~2,200–2,500 g
7 in. 177.8 mm ~3,000–3,500 g
8 in. 203.2 mm ~4,000–4,500 g
9 in. 228.6 mm ~5,000–5,500 g
10 in. 254 mm ~6,000–6,500 g
11 in. 279.4 mm ~7,000–7,500 g
12 in. 304.8 mm ~8,000–8,500 g
13 in. 330.2 mm ~9,000–9,500 g
14 in. 355.6 mm ~10,000–10,500 g

Real-World Size Reference

  • 40 mm — About the size of a ping pong ball
  • 60 mm — About the size of a billiard ball
  • 95 mm — About the size of a baseball
  • 200 mm — About the size of a bowling ball
  • 240 mm — About the size of a basketball

Choosing the Right Size

  • 50–80 mm: Ideal for holding during meditation, carrying in a bag, or placing on a small altar.
  • 100–120 mm: The most popular display size. Great for desks, shelves, and nightstands.
  • 150–200 mm: A striking centerpiece for living rooms, healing spaces, or crystal grids.
  • 200 mm+: Collector and statement pieces. Significant weight — plan your display accordingly.

All measurements are approximate. Natural crystals vary in weight based on stone density and formation. Each sphere is unique.

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Estimated delivery: Wednesday, October 28 – Sunday, November 01

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At first glance this sphere looks deep black, but turn it under a light and soft bands of rainbow color appear inside. Rainbow obsidian is natural volcanic glass, and its hidden colors make it a favorite small sphere for desks and altars.

Product Highlights

  • Material: Natural rainbow obsidian
  • Shape: Polished sphere, from our Crystal Spheres range
  • Size options: 30-40mm or 40-50mm across
  • Colors: Black with bands of rainbow sheen in bright light
  • Chakra: Traditionally linked with the Root Chakra
  • Pick Method: Random Pick. Rainbow bands vary naturally

Chakra Connection

In crystal tradition, obsidian is linked with the root chakra, protection and honest self-reflection, and rainbow obsidian adds a gentler, hopeful quality with its hidden colors. Explore more stones like it in our Protection and Growth and Transformation collections.

How to Use

  • Shine a flashlight or lamp on it to reveal the rainbow bands.
  • Keep it on your desk as a small protective accent.
  • Hold it during reflective journaling or meditation.
  • Pair it with hematite or smoky quartz for a grounding display.

Crystal Care

Obsidian is volcanic glass, around 5 to 5.5 on the Mohs scale, and can chip if dropped. Clean it with a soft, slightly damp cloth and dry it well. Rest it on a stand so it cannot roll off a shelf. See our Mohs hardness guide for more on stone durability.

FAQs

Why can't I see the rainbow colors?

The colors show best under strong, direct light. Hold the sphere near a lamp, flashlight or sunlight and turn it slowly to find the bands.

Is obsidian a crystal?

Obsidian is a natural volcanic glass, not a true crystal. It cools so quickly that crystals do not have time to form.

Which size makes a good gift?

Both sizes fit easily in a gift box. The 40-50mm sphere shows the rainbow bands a little more clearly.

What Is Rainbow Obsidian?

Rainbow obsidian is a natural volcanic glass formed when lava cools very quickly. Tiny inclusions of magnetite nanoparticles inside the glass scatter light, creating soft bands of color that appear in bright light. It is found mainly in Mexico and has long been polished into spheres, hearts and mirrors. Browse more pieces in our obsidian collection.

Further Reading

Discover the hidden colors of this rainbow obsidian sphere.

  • Free shipping on orders over $100.00 within the United States.
  • We strive to process and ship orders within 1-2 business days
  • Estimated delivery time is typically 12-16 days, though it may vary based on the destination

We appreciate your patience and understanding as we work diligently to deliver your order promptly and securely. For any further assistance or inquiries regarding shipping, please feel free to reach out our customer support team.

Each crystal is natural and unique, with no two crystals being identical. Some crystal may contain naturally formed cracks within itself, not caused by other objects.

Please note that size, color, and patterns may vary due to the different batches of crystals and its natural inclusions, or hand measurements.

You can always reference the Size Chart on every product page to translate grams to pounds and ounces, and, millimeters and centimeters to inches.

Thank you for understanding and enjoying all the wonders of crystals.


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