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   SilicateActinolite Ca2(Mg,Fe)5Si8O22(OH)2 Other names/forms: Tremolite Most distinguishing features: Habit and colour are best indicators.   SulfateAlabaster CaSO4 - 2H2O Other names/forms: Gypsum Most distinguishing features: Identified by hardness and good cleavage. Industrial/economical uses: Modern use is in gypsum wallboard used in construction. Used as an ornamental stone and for sculpture due to its softness.   SilicateAntigorite Mg3Si2O5(OH)4 Other names/forms: Serpentine Most distinguishing features: Lustre, colour and habit are indicative.   PhosphateApatite Ca5(PO4)3(OH,F,Cl) Most distinguishing features: Colour, crystal habit and hardness are good indicators. Industrial/economical uses: Source of phosphate used in fertilizers and other industrial applications. Fluorine is also extractable from apatite.   CarbonateAragonite CaCO3 Most distinguishing features: Stalactitic habit, hardness (greater than that of calcite) and colour. Industrial/economical uses: Same as calcite, however abundance is much much less than that of calcite, thus having little economic value.   SulfideArsenopyrite FeAsS Most distinguishing features: Gives off a garlic odour when crushed or heated. Colour is indicative. Industrial/economical uses: A possible source of arsenic, however better secondary sources from smelting processes of other ores exist.   SilicateAugite (Ca,Na)(Mg,Fe,Al,Ti)(SiAl)2O6 Most distinguishing features: Colour, cleavage and hardness are indicative of a pyroxene. Augite has 2 cleavage planes at 90°. Industrial/economical uses: None.   CarbonateAzurite Cu3(CO3)2(OH)2 Most distinguishing features: Colour is reliable, association with malachite is also indicative. Industrial/economical uses: A minor ore of copper, also has ornamental uses. Sometimes a pigment (when powdered).

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