GAGG Lumogarnet Rough – Neon Yellow Fluorescent Crystal with Afterglow

💎 GAGG Gemstone Rough — Hyperfluorescent Garnet with Day Glow & Afterglow

Step into the world of lumogarnets with GAGG (Gadolinium Aluminum Gallium Garnet) — a lab-grown crystal celebrated for its intense fluorescence and exotic glow. Doped with cerium and grown using the Czochralski method, GAGG emits a bright neon yellow under UV light and can even glow in the dark after exposure — a rare trait known as phosphorescence. With a hardness of 8 and high refractive index, it’s ideal for faceting, collecting, or simply admiring.

✨ Key Features:

• Color: Pale yellow to clear in daylight; bright neon yellow under UV
• Fluorescence: Extremely strong under UV and blue light
• Phosphorescence: Quick afterglow visible in dark settings
• Hardness: ~8.0 on Mohs scale — durable and facet-ready
• Refractive Index: ~1.90 — high brilliance and depth
• Dispersion: ~0.028 — noticeable fire with vivid flashes
• Density: ~6.63 g/cm³ — heavier than most garnets
• Melting Point: ~1740 °C (3164 °F) — stable under heat
• Origin: Lab-grown cerium-doped garnet via Czochralski method
• Crystal System: Cubic — no cleavage, excellent for cutting

Whether you're a lapidary artist seeking a fluorescent showpiece or a collector drawn to rare optical phenomena, GAGG offers a mesmerizing blend of science and sparkle. Each rough piece is sold by weight and glows with personality — perfect for those who crave something truly out of the ordinary.

📸 Additional Notes:

• If you would like to see additional pictures of the piece(s) you're interested in, please feel free to contact me. I’ll be happy to provide more images for your review.
• The color of the stone in the photo may vary slightly, as not all computer monitors are calibrated the same.