Unspecified slag localities, Lower Saxony, Germany (original) (raw)

ⓘ Akaganeite

Formula: (Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O

ⓘ Anglesite

Formula: PbSO4

Habit: tabular according to (001)

ⓘ Aragonite

Formula: CaCO3

ⓘ Ashoverite

Formula: Zn(OH)2

Habit: transparent tabular (001) crystals up to 0.5mm, rarely thicker than 0.1mm

Description: Associated with lanarkite

ⓘ Aurichalcite

Formula: (Zn,Cu)5(CO3)2(OH)6

Habit: aggregates of acicular crystals up to 0.5mm forming spheres up to 1mm

Colour: verdigris

Description: Associated with white hydrozincite crusts or an unidentified Zn carbonate mineral (Schnorrer-Köhler, 1988)

ⓘ Baryte

Formula: BaSO4

Habit: indistinct crystals growing in rows on a brown unidentified phyllosilicate

ⓘ Beaverite-(Cu)

Formula: Pb(Fe3+2Cu)(SO4)2(OH)6

ⓘ Bornite

Formula: Cu5FeS4

ⓘ Cerussite

Formula: PbCO3

Habit: pseudohexagonal

ⓘ Chalcophyllite

Formula: Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O

ⓘ Chalcopyrite

Formula: CuFeS2

Description: Associated with and enveloping galena, slightly molten look

ⓘ Comblainite

Formula: Ni4Co2(OH)12[CO3] · 3H2O

Habit: spherical aggregates up to 0.4mm consisting of lamellae up to 0.2mm

Colour: sky blue to bright blue

ⓘ Covellite

Formula: CuS

Habit: crusts

Colour: bluish black

Description: On galena associated with pseudohexagonal cerussite and tabular anglesite

ⓘ Cuprite

Formula: Cu2O

ⓘ Cyanotrichite

Formula: Cu4Al2(SO4)(OH)12 · 2H2O

ⓘ Devilline

Formula: CaCu4(SO4)2(OH)6 · 3H2O

ⓘ Dundasite

Formula: PbAl2(CO3)2(OH)4 · H2O

ⓘ Ferrohexahydrite

Formula: FeSO4 · 6H2O

Habit: hairs up to 1mm

Colour: colourless

Description: "Spiderwebs" covering anglesite crystals; associated with goethite and/or schulenbergite

ⓘ Galena

Formula: PbS

Description: Associated with and enveloped by chalcopyrite

ⓘ Goethite

Formula: α-Fe3+O(OH)

ⓘ Gypsum

Formula: CaSO4 · 2H2O

ⓘ Hydrozincite

Formula: Zn5(CO3)2(OH)6

Habit: crusts

Colour: white

ⓘ Köttigite

Formula: Zn3(AsO4)2 · 8H2O

ⓘ Lanarkite

Formula: Pb2(SO4)O

ⓘ Leadhillite

Formula: Pb4(CO3)2(SO4)(OH)2

ⓘ Leiteite

Formula: Zn(As2O4)

Habit: tabular crystals up to 0.5mm, intergrown in "cockscombs", striations on {010} parallel according to {100}

Colour: colourless to light yellowish

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

ⓘ Mckinstryite

Formula: Ag5-xCu3+xS4

ⓘ Nahcolite

Formula: NaHCO3

ⓘ Namuwite

Formula: Zn4(SO4)(OH)6 · 4H2O

ⓘ Nitrobarite

Formula: Ba(NO3)2

ⓘ Perite

Formula: PbBiClO2

ⓘ Plumbojarosite

Formula: Pb0.5Fe3+3(SO4)2(OH)6

ⓘ Pyrite

Formula: FeS2

Habit: striated cubes

Description: directly on gypsum

ⓘ Quartz

Formula: SiO2

Habit: thin hairs ("whiskers") up to 1mm with silky lustre

ⓘ Schulenbergite

Formula: (Cu,Zn)7(SO4)2(OH)10 · 3H2O

ⓘ Serpierite

Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O

Colour: greenish

ⓘ Sulphur

Formula: S8

Habit: indistinctly formed crystals

Colour: pale yellow

Description: In cavities associated with anglesite. The crystals represent paramorphs after the γ modification rosickyite because at higher modifications monoclinic habits can still be recognised.

ⓘ Susannite

Formula: Pb4(CO3)2(SO4)(OH)2

ⓘ Sweetite

Formula: Zn(OH)2

ⓘ Willemite

Formula: Zn2SiO4

Colour: greenish (UV)

Description: greasy lustre, associated with native silver, coated by an unidentified white Zn carbonate (Schnorrer-Köhler, G. (1988))

ⓘ Zinc

Formula: Zn

Description: Only found as a smelting product associated with willemite. The zinc xenoliths show characteristic cleavage.