Geology Resources & Tools
Explore geology from minerals to mineral systems.
Geo Corner brings together practical geology references, interactive identification tools, rock and mineral data, alteration styles, ore deposits, and educational guides.
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Geological reference libraries
Move between minerals, rocks, alteration, and deposit systems through connected references.
Mineralogy
Mineral Library
Browse mineral chemistry, hardness, streak, luster, crystal system, associations, deposit settings, and field identification.
Explore Minerals → 02Petrology
Rock Library
Compare rock type, texture, grain size, composition, common minerals, and formation environment.
Explore Rocks → 03Hydrothermal Geology
Alteration Library
Explore alteration assemblages, field appearance, geological meaning, ore minerals, and hydrothermal settings.
Explore Alteration → 04Economic Geology
Deposit Types
Learn how ore systems form and explore mineralization, alteration, geometry, commodities, and exploration indicators.
Explore Deposits →Interactive Tools
Put geological observations to work.
Use browser-based tools to identify, compare, and investigate geological materials.
Mineralogy
Mineral Identifier
Rank likely mineral matches from observed physical properties.
Open Tool →Mineralogy
Mineral Comparison
Compare mineral properties side-by-side.
Open Tool →Petrology
Rock Identifier
Rank possible rock matches using texture, grain size, composition, foliation, and other observations.
Open Tool →Petrology
Rock Comparison
Compare rock classification, texture, mineralogy, and formation.
Open Tool →Featured Reference
Porphyry Copper Systems
Explore intrusive architecture, alteration zoning, hydrothermal features, common minerals, commodities, exploration indicators, and conceptual system geometry.
Learn
Build practical geology skills
Start with field-based fundamentals and use Geo Corner tools to apply what you learn.
Practical Field Guide
How to Identify Minerals
Learn how luster, hardness, streak, cleavage, magnetism, acid reaction, and density work together during mineral identification.
Read Guide →Coming Next
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Search across Geo Corner.
Search minerals, rocks, alteration, deposits, tools, and learning resources.