This section is designed to provide a detailed overview on the subject of basic gemology, crystal formation, crystal growth habits, geology, and the geography associated with gemstone occurrences.

We have also included a knowledge-base on gemstone grading and gemmological analysis and data, mining technologies, gem mine locations, and other peripheral information related to gemology and gemological evaluation.

Gemology and Geology

Gem Crystallography, Chemistry and Physical Properties

Crystalline Structures and The Crystal System

Glossaries and Terminology

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