Sale
  • Cover of Gems & Gemology Summer 2025 issue, featuring an iris agate slice showing iridescence.

Summer 2025

  • $39.95

Feature articles from this issue:

  • Structures Behind the Spectacle: A Review of Optical Effects in Phenomenal Gemstones and Their Underlying Nanotextures by Shiyun Jin, Nathan D. Renfro, Aaron C. Palke, and James E. Shigley

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SKU: 930-2502