Minerals with Metallic Luster
Searching for the list of minerals with metallic luster ? Here it is… Along with formula, color, crystal system, uses and other properties.
So before starting, let’s know what minerals & metallic luster mean.
What are minerals ?
Minerals are solid substances that are present in nature and can be made of one element or more elements combined together (chemical compounds).
Gold, Silver and carbon are elements that form minerals on their own. They are called native elements. Instead, ordinary kitchen salt is a chemical compound that is called rock salt, which is a mineral formed of sodium and chlorine ions.
What is metallic luster ?
Luster is what we perceive, when a photon strikes a materials which is mainly made of elements which has 1 to 3 electrons upon its shell.
Elements that have 1 to 3 valence electrons are metals. Material created on this type of materials produce luster.
Elements that have 4 outer electrons are the semi metals, example is silicon and carbon. Material made using this elements does not have luster like metals have. Semi metals have properties between metals and non metals, and we used them on semiconductors.
5 to 8 outer electrons are non metals, some exist as gas, some exist as solids, which does not produce luster.
Now here the list of Minerals with Metallic Luster starts.
1. Graphite Mineral
Formula :- graphite (C)
Color :- black to gray
Crystal System :- hexagonal
Uses & other Properties :- pencil lead, lubricants for locks, rods to control some small nuclear reactions, battery poles
2. Silver Mineral
Formula :- silver (Ag)
Color :- silvery white, tarnishes to black
Crystal System :- cubic
Uses & other Properties :- coins, fillings for teeth, jwellery, silver-plate, wires; malleable and ductile
3. Galena Mineral
Formula :- silver (Ag)
Color :- gray
Crystal System :- cubic
Uses & other Properties :- source of lead, used in pipes, shield for X-rays, fishing equipment sinkers.
4. Gold Mineral
Formula :- gold (Au)
Color :- pale to golden yellow
Crystal System :- cubic
Uses & other Properties :- jwellery, money, gold leaf, fillings for teeth, medicines; does not tarnish.
5. Bornite Mineral
Formula :- bornite [Cu5FeS4]
Color :- bronze, tarnishes to dark blue, purple.
Crystal System :- tetragonal
Uses & other Properties :- source of copper; called “peacock ore” because of the purple shine when it tarnishes.
6. Copper Mineral – mineral with metallic luster
Formula :- copper (Cu)
Color :- copper red
Crystal System :- cubic
Uses & other Properties :- coins, pipes, gutters, wire, cooking utensils, jwellery, decorative plaques; malleable and ductile.
7. Chalcopyrite Mineral
Formula :- chalcopyrite (CuFeS2)
Color :- brassy to golden yellow
Crystal System :- tetragonal
Uses & other Properties :- main ore of copper
8. Chromite Mineral – mineral with metallic luster
Formula :- chromite (FeCr2O4)
Color :- black or brown
Crystal System :- cubic
Uses & other Properties :- ore of chromium, stainless steal, metallurgical bricks.
9. Pyrrhotite Mineral
Formula :- pyrrhotite (FeS)
Color :- bronze
Crystal System :- hexagonal
Uses & other Properties :-often found with pentlandite, an ore of nickel; may be magnetic
10. Haematite Mineral – mineral with metallic luster
Formula :- haematite (specular) (Fe2O3)
Color :- black or reddish brown
Crystal System :- hexagonal
Uses & other Properties :- source of iron; roasted in a blast furnace, converted to “pig”iron, made into steel.
11. Magnetite Mineral
Formula :- magnetite (Fe3O4)
Color :- black
Crystal System :- cubic
Uses & other Properties :- source of iron, naturally magnetic, called lodestone.
12. Pyrite Mineral
Formula :- pyrite(FeS2)
Color :- light, brassy, yellow
Crystal System :- cubic
Uses & other Properties :-source of iron, “fools’s gold”alters to limonite.
13. Fluorite Mineral
Formula :- fluorite (CaF2)
Color :- colourless, white, blue, green, red, yellow, purple
Crystal System :- cubic
Uses & other Properties :- used in the manufacture of optical equipment; glows under Ultraviolet light.
14. Limonite Mineral – mineral with metallic luster
Formula :- limonite (hydrous iron oxides)
Color :- yellow, brown, black
Crystal System :- —-
Uses & other Properties :- source of iron; weathers easily coloring matter of soils.
15. Hornblende Mineral – mineral with metallic luster
Formula :- hornblende [ CaNa(Mg, Al, Fe)5(Al, Si)2Si6O22(OH)2 ]
Color :- green to black
Crystal System :- monoclinic
Uses & other Properties :- Will transmit light on thin edges; 6-sided cross section.
16. Feldspar (Orthoclase) Mineral
Formula :- feldspar (orthoclase) (KAlSi3O8)
Color :- colourless, white to gray, green and yellow
Crystal System :- monoclinic
Uses & other Properties :- insoluble in acids; used in the manufacture of porcelain.
17. Feldspar (Plagioclase) Mineral
Formula :- feldspar (plagioclase) (NaAlSi3O8) (CaAl2Si2O8)
Color :- gray, green, white
Crystal System :- triclinic
Uses & other Properties :- used in ceramics; striations present on some faces.
18. Augite Mineral – mineral with metallic luster
Formula :- augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
Color :- black
Crystal System :- monoclinic
Uses & other Properties :- square or 8-sided cross section.
19. Olivine Mineral – mineral with metallic luster
Formula :- olivine [ (Mg, Fe)2SiO4 ]
Color :- olivegreen
Crystal System :- ortho-rhombic
Uses & other Properties :- gemstones, refractory sand.
20. Quartz Mineral
Formula :- quartz (SiO2)
Color :- colorless, various colors
Crystal System :- hexagonal
Uses & other Properties :- used in glass manufacture, electronic equipment, radios, computers, watches, gemstones.
21. Garnet Mineral – mineral with metallic luster
Formula :- garnet (Mg, Fe, Ca)3(Al2Si3O12)
Color :- deep yellow-red, green, black
Crystal System :- cubic
Uses & other Properties :- used in jwellery, also used as an abrasive.
22. Topaz Mineral
Formula :- topaz [ (Al2SiO4)(F, OH)2 ]
Color :- white, pink, yellow, pale blue, colorless
Crystal System :- ortho-rhombic
Uses & other Properties :- valuable gemstone
23. Corundum Mineral
Formula :- corundum (Al2O3)
Color :- pink, red, white, brown, green, blue, colorless
Crystal System :- hexagonal
Uses & other Properties :- gemstones; ruby is red, sapphire is blue; industrial abrasive.
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