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A rock is a natural aggregate of
minerals separated
into igneous, sedimentary and metamorphic. Igneous rocks are formed when molten
magma cools Sedimentary rocks are formed by deposition of either clastic
sediments, organic matter, or chemical precipitates Metamorphic
rocks are formed by subjecting any rock type of different temperature and
pressure conditions than those in which they originated. A
mineral is a naturally occurring solid formed through geological processes
ranging in
composition from pure elements and simple salts to very complex silicates with
thousands of known forms. The study of minerals is called mineralogy.
Commercially valuable minerals and rocks are referred to as industrial minerals.
Rocks from which minerals are mined for economic purposes are referred to as
ores
Chemical properties of minerals
are divided into:
Silicate class , Carbonate , Sulfate , Halide , Oxide , Sulfide, Phosphate ,
Element and Organic
Rocks Specimen include
Amphibolite
Andesite
Anorthosite
Anthracite
Aplite
Argillite
Arkose
Banded iron formation
Basalt
Basanite
Blueschist
Boninite
Breccia
Bituminous coal seam
Cataclasite
Chalk
Charnockite
Chert
Claystone
Coal
Conglomerate
Coquina
Dacite
Diabase
Diatomite
Diamictite
Diorite
Dolerite
Dolomite
Dunite
Gossan
Granite
Granodiorite
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Greenschist
Greenstone
Gritstone
Gypsum
Harzburgite
Hornblendite
Hornfels
Hyaloclastite
Ignimbrite
Ijolite
Jadeitite
Jasperoid
Jaspillite
Kimberlite
Komatiite
Lamproite
Lamprophyre
Larvikite
Latite
Lignite
Litchfieldite
Lherzolite
Limestone
MarbleLuxullianite
Mangerite
Marble
Marl
Migmatite
Monzogranite
Granophyre
Granulite
Greywacke |
Trachyte
Troctolite
Turbidite
Tuff
Turbidite
Unakite
Variolite
Wackestone
Websterite
Wehrlite
Monzonite
Mudstone
Mylonite
Nepheline syenite
Nephelinite
Norite
Novaculite
PhylliteObsidian
Oil shale
Oolite
Pegmatite
Pelite
Peridotite
Phonolite
Phyllite
Picrite
Psammite
Pseudotachylite
Pumice
Gabbro
Ganister
Gneiss
Foidolite |
Pyroclastic rock
Pyrolite
Pyroxenite
Quartzite
Quartz diorite
Quartz monzonite
Rhyodacite
Rhyolite
Rhomb porphyry
Sandstone
Schist
Scoria
Serpentinite
Shale
Siltstone
Skarn
SlateSlate
Soapstone
Syenite
Tachylyte
Taconite
Tephrite
Theralite
Tonalite
Dolomite crystals
Eclogite
Enderbite
Epidiorite
Epidosite
Essexite
Evaporite
Felsite
Flint
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