Safflorite

Nowadays, Safflorite is a topic that has captured the attention of many people around the world. With the advancement of technology and globalization, Safflorite has become an issue of universal relevance that impacts different sectors of society. Whether on a personal, professional or social level, Safflorite has generated widespread debate and has sparked the interest of experts and fans alike. In this article, we will thoroughly explore the impact of Safflorite and discuss its implications on our daily lives. From its origins to its current evolution, Safflorite represents a relevant phenomenon that deserves to be understood in its entirety.

Safflorite
Safflorite and calcite from Morocco
General
CategoryArsenide mineral
Formula(Co,Fe)As2
IMA symbolSaf[1]
Strunz classification2.EB.15a
Crystal systemOrthorhombic
Crystal classDipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space groupPnnm
Unit cella = 5.173 Å, b = 5.954 Å
c = 2.999 Å; Z = 2
Identification
ColorTin white, tarnishes to gray
Crystal habitPrismatic crystals, massive to fibrous
TwinningForms cruciform penetration twins
CleavageDistinct on {100}
FractureUneven to conchoidal
TenacityBrittle
Mohs scale hardness4.5–5.5
LusterMetallic
StreakGrayish black
DiaphaneityOpaque
Specific gravity6.9–7.3
References[2][3][4]

Safflorite is a rare cobalt iron arsenide mineral with the chemical formula (Co,Fe)As2. Pure safflorite is CoAs2, 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.

Safflorite along with the other minerals crystallize in the orthorhombic system forming opaque gray to white massive to radiating forms, Clinosafflorite has a monoclinic symmetry. It has a mohs hardness of 4.5 and a specific gravity of 6.9 to 7.3. Twinning is common and star shaped twins are frequently found.

Polished sample of safflorite, loellingite and rammelsbergite on quartz from the St Andreasberg District, Harz Mountains

It was first described in 1835 from the Schneeberg District, Ore Mountains, Germany. Safflorite occurs with other arsenide minerals as an accessory in silver mining districts. It alters to the arsenate erythrite in the secondary environment.

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Handbook of Mineralogy
  3. ^ Safflorite on Mindat.org
  4. ^ Safflorite on Webmineral