Jordanite

{{Infobox mineral

| name = Jordanite

| category = Sulfosalt minerals

| boxwidth =

| boxbgcolor =

| image = Jordanite-460419.jpg

| imagesize = 260px

| caption =

| formula = {{chem2|Pb14(As,Sb)6S23}}

| IMAsymbol = Jrd{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}

| molweight =

| strunz = 2.JB.30a

| system = Monoclinic

| class = Prismatic (2/m)
(same H-M symbol)

| symmetry = P2₁/m

| colour = Lead-grey

| habit =

| twinning =

| cleavage = Perfect

| fracture = Conchoidal

| tenacity = Brittle

| mohs = 3

| lustre = Metallic

| polish =

| refractive =

| opticalprop =

| birefringence =

| dispersion =

| pleochroism = Visible

| fluorescence=

| absorption =

| streak = Black

| gravity =

| density = 6.4

| melt =

| fusibility =

| diagnostic =

| solubility =

| diaphaneity =

| other =

| references =

}}

Jordanite is a sulfosalt mineral with chemical formula {{chem2|Pb14(As,Sb)6S23}} in the monoclinic crystal system,[http://www.mindat.org/min-2113.html Mindat information page for Jordanite] named after the German scientist H. Jordan (1808–1887) who discovered it in 1864.

Lead-grey in colour (frequently displaying an iridescent tarnish), its streak is black and its lustre is metallic. Jordanite has a hardness of 3 on Mohs scale, has a density of approximately 6.4, and a conchoidal fracture.

The type locality is the Lengenbach Quarry in the Binn Valley, Wallis, Switzerland.