The open encyclopedia of minerals
GlossaryCite the database
Mineralogist.org
Minerals A–ZSearchCollectionsBrowse by PropertyIdentify a SpecimenCompare MineralsLocalities MapGlossaryContribute Search the Database →
Arsenate

Sailaufite

(Ca,Na,   )₂Mn³⁺₃O₂(AsO₄)₂(CO₃)·3H₂O
Hardness3.5
Crystal systemMonoclinic
ClassArsenate
←PrevSahliniteNextSainfeldite→
Sailaufite specimen

Sailaufite Locality: Fuchs Quarry, Hartkoppe Mt., Sailauf, Hösbach, Spessart Mts, Franconia, Bavaria, Germany Sailaufite xls (analysed). Field of view 5 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0

Sailaufite

Sailaufite is an IMA-recognized mineral species in the arsenate class, with the chemical formula (Ca,Na,   )₂Mn³⁺₃O₂(AsO₄)₂(CO₃)·3H₂O.

It crystallizes in the monoclinic crystal system (space group Cm). It is a member of the Arseniosiderite structural group.

Key properties: Mohs hardness 3.5; specific gravity 3.356; Brown streak; Vitreous luster; optically biaxial.

IMA symbol Slf, IMA status: approved, named in 2000.

A late-stage hydrothermal product in veins of Mn ore in rhyolite.

It is found associated with Hausmannite, arseniosiderite, kutnohorite, dolomite, quartz, calcite, Mn-calcite (Germany); manganlotharmeyerite, tilasite, calcite, braunite (Switzerland).

Refers to the region near the type locality, Sailauf, Germany.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more S minerals or help write this entry.