hessite

{{Infobox mineral | name = Hessite | boxwidth = | boxbgcolor = | image = Gold-Hessite-mf11b.jpg | imagesize = 260px | alt = | caption = | category = Sulfide minerals | formula = Ag2Te | IMAsymbol = Hes | molweight = | strunz = 2.BA.30c | dana = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/c | unit cell = a = 8.13, b = 4.48 c = 8.09 [Å]; β = 112.9°; Z = 4 | color = Lead-grey, steel-grey | colour = | habit = | twinning = | cleavage = Indistinct on {100} | fracture = | tenacity = Sectile | mohs = 2–3 | luster = Metallic | streak = black | diaphaneity = Opaque | gravity = 8.24 – 8.45 | density = | polish = | opticalprop = Anisotropic | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = }}

Hessite is a mineral form of disilver telluride (Ag2Te). It is a soft, dark grey telluride mineral which forms monoclinic crystals.