XXL 47lb Volcano Agate sphere with swirling rust, cream, deep brown, and black banding, on a dark wood stand.
XXL 47lb Volcano Agate sphere with dark volcanic banding, glowing bright green under UV light on a wood stand.
XXL 47lb Volcano Agate sphere with swirling rust, cream, deep brown, and ochre banding on a dark wood stand.
XXL 47lb Volcano Agate sphere with swirling rust, cream, deep brown, and ochre banding on a dark wood stand.
XXL 47lb Volcano Agate sphere with swirling black, rust, and cream banding on a dark wood stand.

Volcano Agate Sphere XXL 47lbs UV Reactive

Regular price $2,299.99 Sale price$1,499.99 Save $800.00
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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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There are large crystal spheres, and then there is this. At 47 pounds, this Volcano Agate Sphere XXL is not a display piece in the conventional sense — it is a room anchor, a geological monument, and a collector's centerpiece that commands attention the moment it enters a space. The swirling volcanic banding, moving through earthy tones of rust, cream, deep brown, and warm ochre, is hand-polished to a smooth, glossy finish that reveals the full complexity of the stone's internal structure. Under UV light, it transforms entirely, revealing hidden fluorescent colors that glow against the volcanic patterns in a way that has to be seen to be understood. Exact pick, one of a kind. Shipped in a custom wood box with stand included.

What Is Volcano Agate?

Volcano Agate is a variety of Agate, a microcrystalline Quartz with a Mohs hardness of 6.5 to 7, that formed when silica-rich fluids filled cavities in ancient volcanic rock and deposited in concentric layers over vast stretches of geological time. The result is the characteristic banding that makes each sphere completely unique. The UV reactive quality is caused by trace minerals within the stone that absorb ultraviolet light and re-emit it as visible fluorescent light. No two Volcano Agate spheres share the same banding pattern, color distribution, or UV response.

Chakra Connection

Volcano Agate resonates with the Root Chakra for deep grounding, stability, and the ability to feel anchored during major life transitions. Its fire element energy supports the Solar Plexus Chakra for personal power and decisive action, and the Sacral Chakra for creativity and vitality. At this scale, the sphere radiates these energies continuously and powerfully throughout the room it occupies.

Product Highlights

  • Volcano Agate sphere, approximately 47 lbs, with swirling volcanic banding hand-polished to a glossy finish
  • UV reactive: reveals hidden fluorescent colors under ultraviolet light
  • Resonates with the Root Chakra, Solar Plexus Chakra, and Sacral Chakra
  • Shipped in a custom wood box with stand included
  • Mohs hardness 6.5 to 7, durable natural specimen
  • This product is an exact pick as pictured, one of a kind

Display and Placement

Ensure your display surface and stand can support the full weight. A dedicated pedestal, heavy console table, or reinforced shelf is recommended. Keep a UV flashlight nearby to reveal the sphere's fluorescent qualities for guests. For energetic use, position at the center of a meditation room or sacred space to create a continuous field of grounding and transformative energy throughout the room.

Crystal Care

Wipe with a soft, slightly damp cloth. Avoid harsh chemicals or abrasive materials on the polished surface. Avoid prolonged soaking. Limit extended direct sunlight to preserve the natural color and UV reactive properties. Sound cleansing with a large singing bowl is ideal for a specimen of this size. Moonlight and sage smoke also work well.

This product is an exact pick as pictured, one of a kind.

  • Free shipping on orders over $100.00 within the contiguous United States.
  • Shipping times may vary depending on the product
  • We strive to process and ship orders within 2-3 business days
  • Estimated delivery time is typically Within 7 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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