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Very valuable gemstone like compounds.

  • BN boron nitride [1]
  • AlN aluminium nitride [2] (note: the phosporus analogon is highly toxic)
  • GaN gallium nitride [3] (gallium is rare)
  • InN indium nitride [4] (indium is very rare)

  • BCN Heterodiamond [5]

Carbon Group:

  • β-C3N4 beta carbon nitride [6]
  • Si3N4 silicon nitride [7]
    pseudo phase diagram towards SiO2 is filled by silicon_oxynitride [8] -- mineral: Si2N2O sinoite [9]
  • Ge3N4 [10] (Ge is rare)
  • Sn3N4
  • no lead nitrides?

Nonmetallic: (mid level abundance elements)

  • Cu3N copper(I)-nitride (de: [11]) despite the metal excess nonmetallic -- (and Ag3N silver nitride [12])
  • Zn3N2 zinc nitride [13]

  • Na3N [14] (reacts with water, exotic structure) and Li3N lithium nitride [15] (lithium is not too abundant)
  • Mg3N2 magnesium nitride [16] (reacts with water) and Be3N2 beryllium nitride [17] (Be is rare and poisonous)
  • Ca3N2 calcium nitride [18] (reacts with water)
  • potassium nitride?


  • TiN titanium nitride [19] and ZrN zirconium nitride [20] and YN yttrium nitride [21]
  • VN vanadium nitride [22] and NbN niobium nitride [23] and TaN tantalum nitride [24] (vanadium, niobium and tantal range from rare to very rare)
  • CrN chromium nitride [25] (chromium is not too abundant) and WN tungsten nitride [26] (tungsten is rare - compound susceptible to water)
  • Fe2N (Fe3N) Fe4N Fe7N3 Fe16N2 -- diverse iron nitrides [27]

Molecular solids (not really suitable as structural materials):

  • Volatile molecular solid: S2N2 [28]
  • molecular solid: α,γ,δ P3N5 [29]
  • Tellurium_nitride? [30] (Te is very rare)

Wikipedia: Nitride Category:Nitrides


Since nitrogen likes to form strong triple bonds with low energy (N2 gas) many nitrogen compounds are explosive.


The salts of the nitrogen acids are usually rather water soluble. Even the earth alkali salts.
Since they are also rather soft even isolated against environment they seem unsuitable as structural materials.

  • NaNO3 sodium nitrate [31] (common name: soda) mineral: nitratine [32] Mohs 1.5-2
  • KNO3 potassium nitrate [33] (common name: salpeter) mineral: niter [34] Mohs 2
  • Mg(NO3)2 magnesium nitrate [35] (as hexahydrate: nitromagnesite)
  • Ca(NO3)2 (as tehrahydrate: nitrocalcite)


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