M E N U « Home | Browse Minerals | QuizzesMinerals by letter: All | K | G | O | A | H | T | P | C | Q | N | Z | S | E | W | M | B | F | D | L Minerals by class: Silicates | Halides | Carbonates | Sulfates | Oxides | Phosphates | Hydroxides | Native elements | Sulfides Silicate Subclasses: Nesosilicates | Pyroxenes | Amphiboles | Frameworks | Sorosilicates | Cyclosilicates | Phyllosilicates    Click on a mineral for more details. M i n e r a l s   CarbonateCalcite (massive) CaCO3 Most distinguishing features: Recognized by hardness and cleavage. Dolomite and aragonite have higher densities. Industrial/economical uses: Used in the manufacture of portland cement (quicklime). Also used as a pharmaceutical (antacids, calcium supplements).   CarbonateCalcite (sparry) CaCO3 Other names/forms: Iceland Spar Most distinguishing features: Hardness, crystal habit and twin striae are typical. Industrial/economical uses: Used in the manufacture of portland cement (quicklime) and in the pharmaceutical industry.   SilicateChalcedony SiO2 Other names/forms: Micro/Cryptocrystalline Quartz Most distinguishing features: Identified by hardness and texture/habit. Industrial/economical uses: Used for making glass and as a source of Silicon.   SulfideChalcocite Cu2S Most distinguishing features: Black colour with sooty appearance on weathered surfaces and sectile character are distinctive. Bronze-yellow on fresh surfaces. Industrial/economical uses: Mined as a source of copper.   SulfideChalcopyrite CuFeS2 Most distinguishing features: Distinctive brassy-green colour. Has a richer yellow colour than pyrite and a lower hardness. Industrial/economical uses: Mined for its copper which has innumerable industrial uses.   SilicateChlorite (Mg,Fe,Al)3(Si,Al)4O10(OH)2 Most distinguishing features: Colour and its low hardness are distinguishing characteristics. Industrial/economical uses: None, however chlorite schist sometimes does have ornamental uses.   OxideChromite FeCr2O4 Most distinguishing features: Resembles magnetite and ilmenite, but not very magnetic and has a more resinous lustre. Industrial/economical uses: Only ore mineral for chromium.   SilicateChrysotile Mg3Si2O5(OH)4 Other names/forms: Serpentine Most distinguishing features: Habit and colour and most indicative properties. Industrial/economical uses: Used in 98% of world's production of asbestos.   Native elementCopper Cu Most distinguishing features: Colour and metallic characteristics are diagnostic. Industrial/economical uses: Used as electrical wire due to electrical conductivity and relatively low price.   OxideCorundum Al2O3 Most distinguishing features: Hardness is best indicator, crystal habit is good too. Industrial/economical uses: Used as a gemstone. High-quality ruby can be more valuable than diamond. Corundum is also used as an abrasive in sandpaper, polishing compounds, etc.

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