An offline reference app for gemology students and professionals. Explore gemstone properties, crystal structures with interactive 3D models, and detailed identification points. Study gemology anywhere without an internet connection.
2.1.0
August 29, 2026
What's New in 2.1.0 • New identify tool: enter refractive index, birefringence, specific gravity, pleochroism, absorption spectra and other observations to narrow down candidates from 49 common gemstones. • Key physical properties re-verified against standard references. • Synthetic diamond and imitation identification added to the diamond note. • Improved reading smoothness and stability.
More感谢支持，会持续优化的
Gemology Notes is an offline reference app designed for learning about gemology. It provides detailed information on gemstone properties, crystal structures, and systematic classification, complete with interactive 3D models.
Yes, Gemology Notes is fully offline. You do not need an internet connection to access its reference material, 3D crystal models, or detailed notes, allowing you to study anywhere.
Gemology Notes offers systematic knowledge covering fundamental properties, crystal structures, and the systematic classification of common gemstones. It includes physical properties, optical characteristics, and key identification points.
Yes, Gemology Notes features interactive 3D crystal models for each gemstone. You can rotate and zoom these models to examine their crystal structures from every angle.
Gemology Notes is a paid application, available for a one-time purchase of $2.99.
Gemology Notes is compatible with iPhones and iPads.
The latest version of Gemology Notes is 2.1.0, which was last updated on August 29, 2026. Updates typically include new features, bug fixes, and content improvements.
Gemology Notes has an age rating of 4+, making it suitable for a wide range of users interested in learning about gemology.
