Built by a geologist
Mineral ID Basics
Learn to identify common minerals using physical properties and simple tests. This free track includes 5 structured lessons with practical field context and review questions.
Lessons in Mineral ID Basics
- Introduction to Mineralogy — Mineralogy is the scientific study of minerals - naturally occurring, inorganic solids with a definite chemical composition and crystalline structure.
- Physical Properties: Hardness & Luster — The first step in mineral identification is observing physical properties. Hardness and luster are two of the most useful and easily determined…
- Physical Properties: Streak, Cleavage & Fracture — Continuing our exploration of physical properties, streak, cleavage, and fracture provide crucial diagnostic information.
- Crystal Systems & Habits — Crystal structure determines many physical properties and provides key identification clues. Understanding crystal systems and habits will elevate your…
- Special Diagnostic Tests — Beyond the basic physical properties, special tests can help identify minerals that might otherwise be confusing.
Verification resources
Cross-check terminology, classification, methods, and safety with these authoritative external resources.
- Mineral ID Key — Mineralogical Society of America. Physical-property identification methods, repeat-testing guidance, and limitations.
- IMA-CNMNC List of Mineral Names — International Mineralogical Association. Official mineral names, nomenclature, and classification records.
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