melonite

{{Infobox mineral | name = Melonite | boxwidth = | boxbgcolor =#baa457 | image = Melonite-Calaverite-219105.jpg | imagesize = | alt = | caption = Melonite after calaverite, on quartz. Cresson mine, Cripple Creek, Colorado. Size: 1.3 × 0.9 × 0.4 cm. | category = Sulfide minerals | formula = NiTe2 | IMAsymbol = Mlt | molweight = 313.89 g/mol | strunz = 2.EA.20 | dana = 02.12.14.01 | class = Hexagonal scalenohedral (m) H-M symbol: ( 2/m) | symmetry = Pm1 | unit cell = a = 3.84 Å, c = 5.26 Å; Z = 1 | color = White, reddish white | colour = | habit = Crystalline, foliated, granular | system = Trigonal | twinning = | cleavage = {0001} Perfect | fracture = Brittle | tenacity = | mohs = 1–1.5 | luster = Metallic | streak = Dark gray | diaphaneity = Opaque | gravity = 7.72 | density = 7.3 | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = None | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = }}

Melonite is a telluride of nickel; it is a metallic mineral. Its chemical formula is NiTe2. It is opaque and white to reddish-white in color, oxidizing in air to a brown tarnish.