safflorite

{{Infobox mineral | name = Safflorite | boxwidth = | boxbgcolor = | image = Safflorite and Calcite3 - Bouismas Mine, Bou Azzer, Tazenakht, Ouarzazate, Souss-Massa-Draa, Morocco.jpg | imagesize = 260px | alt = | caption = Safflorite and calcite from Morocco | category = Arsenide mineral | formula = | IMAsymbol = Saf | molweight = | strunz = 2.EB.15a | dana = | system = Orthorhombic | class = Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) | symmetry = Pnnm | unit cell = a = 5.173 Å, b = 5.954 Å c = 2.999 Å; Z = 2 | color = Tin white, tarnishes to gray | colour = | habit = Prismatic crystals, massive to fibrous | twinning = Forms cruciform penetration twins | cleavage = Distinct on {100} | fracture = Uneven to conchoidal | tenacity = Brittle | mohs = 4.5–5.5 | luster = Metallic | streak = Grayish black | diaphaneity = Opaque | gravity = 6.9–7.3 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = }}

Safflorite is a rare cobalt iron arsenide mineral with the chemical formula . Pure safflorite is , but iron is virtually always present. Safflorite is a member of the three-way substitution series of arsenides known as the loellingite group. More than fifty percent iron makes the mineral loellingite whereas more than fifty percent nickel and the mineral is rammelsbergite. A parallel series of antimonide minerals exist.