Iron sulfide

<h2 id="minerals">Minerals</h2>
<p>By increasing order of stability: 
</p>
<ul><li><a href="/facts/Iron(II)_sulfide/byDMQhD8">Iron(II) sulfide</a>, FeS</li>
<li><a href="/facts/Greigite/6EmE2F23">Greigite</a>, Fe3S4 (cubic)</li>
<li><a href="/facts/Pyrrhotite/gTgn4Mmf">Pyrrhotite</a>, Fe1−xS (where x = 0 to 0.2) (monoclinic or hexagonal)</li>
<li><a href="/facts/Troilite/tWP2rSj1">Troilite</a>, FeS, the <a href="/facts/Endmember/ftb6zfhy">endmember</a> of pyrrhotite (hexagonal)</li>
<li><a href="/facts/Mackinawite/uxY761DR">Mackinawite</a>, Fe1+xS (where x = 0 to 0.1) (tetragonal)</li>
<li><a href="/facts/Marcasite/vP4CW3QC">Marcasite</a>, orthorhombic FeS2</li>
<li><a href="/facts/Pyrite/41CYREyr">Pyrite</a>, cubic FeS2 (fool's gold)</li>
<li><a href="/facts/Arsenopyrite/xnb3E9yK">Arsenopyrite</a> (<i>mispickel</i>), FeAsS, or Fe(As-S), Fe(III) mixed arseno-sulfide (monoclinic)</li></ul>
<h2 id="synthetic">Synthetic</h2>
<ul><li><a href="/facts/Iron(III)_sulfide/AHyY8Fsf">Iron(III) sulfide</a>, Fe2S3</li>
<li><a href="/facts/Iron-sulfur_clusters/QCbnrAF0">Iron-sulfur clusters</a>, includes both synthetic and biological</li></ul>
<h2 id="biological">Biological</h2>
<ul><li><a href="/facts/Iron%E2%80%93sulfur_protein/mYwTWzRH">Iron–sulfur protein</a></li></ul>

Iron sulfide open-in-new

Iron sulfide