... ][Ca(SO 4 ) 2 ]⋅12H 2 O), was discovered in a late-stage, low-temperature assemblage in cavities of a magnetite-bearing dolomitic rock from the Långban deposit, Värmland county, Bergslagen ore province, Sweden. The associated minerals are dolomite, calcite, members of the magnetite–magnesioferrite...

...Dan Holtstam; Fernando Cámara; Andreas Karlsson Abstract Langhofite, ideally Pb 2 (OH)[WO 4 (OH)], is a new mineral from the Långban mine, Värmland, Sweden. The mineral and its name were approved by the International Mineralogical Association Commission on New Minerals, Nomenclature...

...Cristian Biagioni; Ulf Hålenius; Marco Pasero; Andreas Karlsson; Ferdinando Bosi The new mineral species hydroxylhedyphane, ideally Ca 2 Pb 3 (AsO 4 ) 3 (OH), has been discovered in the Långban Fe–Mn–(Ba–As–Pb–Sb) deposit, Filipstad district, Värmland, Sweden. It occurs as colourless prismatic...

...Dan Holtstam; Fernando Cámara; Henrik Skogby; Andreas Karlsson Hjalmarite, ideally A Na B (NaMn) C Mg 5 T Si 8 O 22 W (OH) 2 , is a new root-name member of the amphibole supergroup, discovered in skarn from the Långban Fe–Mn–(Ba–As–Pb–Sb–Be–B) deposit, Filipstad, Värmland, Sweden (IMA-CNMNC 2017...

...Mark A. Cooper; Frank C. Hawthorne; Jörgen Langhof; Ulf Hålenius; Dan Holtstam Abstract Wiklundite, ideally Pb 2 [4] (Mn 2+ ,Zn) 3 (Fe 3+ ,Mn 2+ ) 2 (Mn 2+ ,Mg) 19 (As 3+ O 3 ) 2 [(Si,As 5+ )O 4 ] 6 (OH) 18 Cl 6 , is a new arseno-silicate mineral from Långban, Filipstad, Värmland, Sweden. Both...

... at the Långban Mn-Fe oxide deposit, Värmland, central Sweden. The mineral occurs as very rare, small (⩽60 μm), grey, submetallic, irregularly rounded anhedral grains. Gatedalite has a calculated density of 4.783 g/cm 3 . It is opaque and weakly anisotropic with reflectivity in air varying between 17.1 and 20.8...

...Lee A. Groat; R. James Evans Abstract Red vesuvianite crystals occur with hausmanite and calcite in a hand specimen from Långban, Sweden. Backscattered electron imaging revealed that a very few of the vesuvianite crystals exhibit cores of higher average atomic number (vesuvianite I) than the bulk...

... minerals crystallize. The wide range of chemical compositions encountered in these amphiboles suggests that this is the most flexible of the six known amphibole structure-types. In a recent report on an unusual Mn 3+ - and Pb-bearing pargasite from the famous Långban deposit ( Jonsson and Hålenius 2010...

... Hyttsjön, which is a lake situated west of the Långban mines. The average analysis is SiO 2 26.38, Al 2 O 3 0.02, Fe 2 O 3 2.77, CaO 4.35, MnO 2.00, PbO 58.13, BaO 4.65, Cl 0.65, H 2 O (calc) 1.58, O = Cl -0.15, total 100.40 wt%. Hyttsjoite grains are mostly 0.1-0.6 mm across, subequant to skeletal...

... with the cell parameters, indicate that ingersonite is isotypic with pyrochlore and romeite. Ingersonite occurs as irregular aggregates of subhedral crystals with calcite, clinohumite?, jacobsite, and an unnamed mineral at the Långban mine, Värmland, Sweden. It is transparent to translucent, has a vitreous...

...Pete J. Dunn; Donald R. Peacor; Alan J. Criddle; Chris J. Stanley Abstract Filipstadite, ( Mn , Mg ) 2 ( Sb 0.5 5+ Fe 0.5 3+ ) O 4 is a new mineral, related to spinel, from Långban, Värmland, Sweden. Filipstadite is orthorhombic, pseudocubic, with A = 8.640 Å for its cubic subcell. The strongest...

...Pete J. Dunn; Donald R. Peacor; B. Darko Sturman; Frederick J. Wicks Abstract Rouseite, ideally Pb 2 Mn(AsO 3 ) 2 ·2H 2 O, is a new mineral species found associated with trigonite and finnemanite from Långban, Värmland, Sweden. Rouseite is triclinic, space group P 1 or P 1 , with a = 6.36(2), b...

... , with a = 13.569(5), b = 20.085(4), c = 7.463(4)Å, β = 105.75(5)°, V = 1958(2)Å 3 , and Z = 2. Freedite is greenish-yellow, with vitreous luster, {100} cleavage, and a specific gravity of 7.0 g/cm 3 (obs). It is found associated with ecdemite, lead, copper, finnemanite, and calcite at the Långban Mine, Värmland...

... in hedyphane is attributed to a preference by atoms with sterically active electron lone pairs, e.g., Pb(II), for the asymmetrically coordinated 6 h site. A study of minerals in the solid solution series Ca x Pb 5−x (AsO 4 ) 3 Cl from Långban, Sweden, and Franklin, New Jersey, reveals a lack of compositions...

...Jan-Olov Bovin; M. O'Keeffe Abstract Takéuchiite, Mg 1.59 Mn 0.42 2 + Mn 0.78 3 + Fe 0.19 3 + Ti 0.01 4 + BO 5 , occurs as acicular crystals in granular dolomite and calcite from the Långban mine, Värmland, Sweden. It is orthorhombic, space group Pnnm or Pnn2 with a = 27.50(1), b = 12.614(2), c...