Nontronite: Properties and Occurrences
Nontronite is an iron(III)-rich clay mineral in the smectite group. It is a pale yellow or greenish clay mineral composed primarily of hydrous iron silicate…
Geographic Minerals
Nobleite: Properties and Occurrences
Nobleite is a rare borate mineral with the chemical formula CaB6O9(OH)2·3H2O. It is a transparent mineral containing calcium, boron, hydroxide, and water. It was discovered…
Nitratine: Properties and Occurrences
Nitratine or nitratite, also known as cubic niter, soda niter, or Chile saltpeter, is a mineral, the naturally occurring form of sodium nitrate, NaNO3. It…
Niter – Properties and Occurrences
Niter is an unusual mineral belonging to the nitrates group. It is also known as, nitre, which is the mineral form of potassium nitrate, KNO3,…
Non-Renewable Resource
A non-renewable resource, also known as a finite resource, is a natural resource found under the earth’s surface that does not refill at the same…
Nissonite: Properties and Occurrences
Nissonite is a very rare copper phosphate mineral with the formula: Cu2Mg2(PO4)2(OH)2·5H2O. It is a monoclinic-prismatic bluish-green mineral containing copper, hydrogen, magnesium, oxygen, and phosphorus.…
Niningerite – Properties and Occurrences
Niningerite is a magnesium-iron-manganese sulfide mineral with the chemical formula MgS that is found in enstatite chondrite meteorites. Niningerite is the magnesium-dominant analog of keilite.…
Lithiophilite – a Geographic Mineral
Lithiophilite is a mineral containing the element lithium. It is a mineral consisting of phosphate of lithium and manganese usually containing iron and being isomorphous…
Niedermayrite: Properties and Occurrences
Niedermayrite is a rare monoclinic hydrated copper cadmium sulfate hydroxide mineral. It is a rare hydrated copper cadmium sulfate hydroxide mineral with formula: Cu4Cd(SO4)2(OH)6·4H2O. It…
Lepidolite: Properties and Occurrences
Lepidolite is a lilac-gray or rose-colored member of the mica group of minerals with the chemical formula K(Li, Al)3(Al, Si, Rb)4O10(F, OH)2. It is a…
Hectorite – a Geographic Mineral
Hectorite is a trioctahedral, magnesium-based smectite clay. It is a rare soft, greasy, white clay mineral with a chemical formula of Na0.3(Mg, Li)3Si4O10(OH)2. It contains…
Eucryptite – Properties and Occurrences
Eucryptite is a mineral consisting of a colorless or white lithium aluminum silicate occurring in hexagonal crystals. It is a lithium-bearing aluminium silicate mineral with…
Load More