Redgillite
A valid IMA mineral species
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About Redgillite
Formula:
Cu6(SO4)(OH)10 · H2O
Colour:
Pale green, grass green, emerald green, nickel green
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
3.45
Crystal System:
Monoclinic
Name:
For its first noted occurrence at the Red Gill Mine (but not the type locality). The photo at right shows the mine that the mineral is named after, rather than the type locality.
Unique Identifiers
Mindat ID:
10349
Long-form identifier:
mindat:1:1:10349:1
GUID
(UUID V4):
(UUID V4):
1cf200d1-331c-4f70-ac8f-a7ed88671d66
IMA Classification of Redgillite
Classification of Redgillite
7.DD.70
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Rgl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Redgillite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Pale green, grass green, emerald green, nickel green
Streak:
White
Hardness:
2 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {001}, good on {100} and {010}.
On {001}, good on {100} and {010}.
Fracture:
Irregular/Uneven
Comment:
Brittle, slightly flexible, non-elastic.
Density:
3.45(5) g/cm3 (Measured) 3.450 g/cm3 (Calculated)
Optical Data of Redgillite
Type:
Biaxial (-)
RI values:
nα = 1.693 nβ = 1.721 nγ = 1.723
2V:
Measured: 30° (2), Calculated: 30°
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v, medium
Optical Extinction:
X ≈ c, Y = b, Z ≈ a.
Pleochroism:
Strong
Comments:
X = Y = blue-green, Z = yellow-green.
Comments:
Absorption: Y > X > Z.
Chemistry of Redgillite
Mindat Formula:
Cu6(SO4)(OH)10 · H2O
Elements listed:
Crystallography of Redgillite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 3.155 Å, b = 10.441 Å, c = 19.436 Å
β = 90.089°
β = 90.089°
Ratio:
a:b:c = 0.302 : 1 : 1.862
Unit Cell V:
640.2 ų
Z:
2
Morphology:
Bladed crystals with squared-off or tapering terminations; usually in radiating groups.
Type material: Forms observed are {001} prominent, {010} as composite stepped faces, and {100} irregular.
Type material: Forms observed are {001} prominent, {010} as composite stepped faces, and {100} irregular.
Twinning:
Rarely on (001) (Schnorrer et al., 2006)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.72 Å | (90) |
7.11 Å | (100) |
4.60 Å | (30) |
4.068 Å | (20) |
2.880 Å | (30) |
2.318 Å | (50) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] |
Type Occurrence of Redgillite
General Appearance of Type Material:
Bladed crystals up to 0.15 mm long with squared-off or tapering terminations; usually in radiating groups.
Place of Conservation of Type Material:
Manchester Museum, The University of Manchester, England, MANCH:18024.
Geological Setting of Type Material:
In thin fractures in partly oxidized copper sulphides, probably dump-formed.
Associated Minerals at Type Locality:
Synonyms of Redgillite
Other Language Names for Redgillite
Common Associates
Associated Minerals Based on Photo Data:
23 photos of Redgillite associated with Langite | Cu4(SO4)(OH)6 · 2H2O |
8 photos of Redgillite associated with Susannite | Pb4(CO3)2(SO4)(OH)2 |
8 photos of Redgillite associated with Montetrisaite | Cu6(SO4)(OH)10 · 2H2O |
7 photos of Redgillite associated with Hemimorphite | Zn4Si2O7(OH)2 · H2O |
6 photos of Redgillite associated with Cuprite | Cu2O |
5 photos of Redgillite associated with Linarite | PbCu(SO4)(OH)2 |
5 photos of Redgillite associated with Pyromorphite | Pb5(PO4)3Cl |
5 photos of Redgillite associated with Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
4 photos of Redgillite associated with Cerussite | PbCO3 |
4 photos of Redgillite associated with Chalcopyrite | CuFeS2 |
Related Minerals - Strunz-mindat Grouping
7.DD. | Asagiite | NiCu4(SO4)2(OH)6 · 6H2O |
7.DD.05 | Felsőbányaite | Al4(SO4)(OH)10 · 4H2O |
7.DD.07 | Llantenesite | Cu6Al[SeO4](OH)12Cl · 3H2O |
7.DD.10 | Langite | Cu4(SO4)(OH)6 · 2H2O |
7.DD.10 | Posnjakite | Cu4(SO4)(OH)6 · H2O |
7.DD.10 | Wroewolfeite | Cu4(SO4)(OH)6 · 2H2O |
7.DD.10 | Gobelinite | CoCu4(SO4)2(OH)6 · 6H2O |
7.DD.10 | Fehrite | MgCu4(SO4)2(OH)6 · 6H2O |
7.DD.15 | Spangolite | Cu6Al(SO4)(OH)12Cl · 3H2O |
7.DD.15 | Kobyashevite | Cu5(SO4)2(OH)6 · 4H2O |
7.DD.15 | Unnamed (Dimorph of Devilline) | CaCu4(SO4)2(OH)6 · 3H2O |
7.DD.20 | Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
7.DD.25 | Christelite | Cu2Zn3(SO4)2(OH)6 · 4H2O |
7.DD.30 | Campigliaite | Mn2+Cu4(SO4)2(OH)6 · 4H2O |
7.DD.30 | Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Orthoserpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Niedermayrite | CdCu4(SO4)2(OH)6 · 4H2O |
7.DD.30 | Edwardsite | Cu3Cd2(SO4)2(OH)6 · 4H2O |
7.DD.35 | Carrboydite | (Ni1-xAlx)(SO4)x/2(OH)2 · nH2O |
7.DD.35 | Glaucocerinite | (Zn1-xAlx)(OH)2(SO4)x/2 · nH2O |
7.DD.35 | Honessite | (Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Hydrohonessite | (Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2O |
7.DD.35 | Motukoreaite | Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O |
7.DD.35 | Mountkeithite | [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O |
7.DD.35 | Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.35 | Wermlandite | Mg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O |
7.DD.35 | Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O |
7.DD.35 | Zincaluminite | Zn6Al6(SO4)2(OH)16 · 5H2O |
7.DD.35 | Hydrowoodwardite | (Cu1-xAlx)(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Zincowoodwardite | Zn1-xAlx(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Natroglaucocerinite | Zn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.35 | Nikischerite | Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.40 | Isselite | Cu6(SO4)(OH)10 · 5H2O |
7.DD.40 | Lawsonbauerite | (Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O |
7.DD.40 | Torreyite | (Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2O |
7.DD.45 | Mooreite | Mg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2O |
7.DD.45 | Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O |
7.DD.47 | Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O |
7.DD.50 | Namuwite | Zn4(SO4)(OH)6 · 4H2O |
7.DD.50 | Minohlite | (Cu,Zn)7(SO4)2(OH)10 · 8H2O |
7.DD.52 | Lauraniite | Cu6Cd2(SO4)2(OH)12 · 5H2O |
7.DD.55 | Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] |
7.DD.60 | Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
7.DD.65 | Vonbezingite | Ca6Cu3(SO4)3(OH)12 · 2H2O |
7.DD.75 | Chalcoalumite | CuAl4(SO4)(OH)12 · 3H2O |
7.DD.75 | Nickelalumite | NiAl4(SO4)(OH)12(H2O)3 |
7.DD.75 | Kyrgyzstanite | ZnAl4(SO4)(OH)12 · 3H2O |
7.DD.80 | Guarinoite | Zn6(SO4)(OH)10 · 5H2O |
7.DD.80 | Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
7.DD.80 | Thérèsemagnanite | NaCo4(SO4)(OH)6Cl · 6H2O |
7.DD.80 | UM1992-30-SO:CCuHZn | (Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O |
7.DD.85 | Montetrisaite | Cu6(SO4)(OH)10 · 2H2O |
Other Information
Notes:
Dissolves slowly in dilute HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Redgillite
mindat.org URL:
https://www.mindat.org/min-10349.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Redgillite
Localities for Redgillite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Austria | |
| Kolitsch et al. (2011) |
Bolivia | |
| Cacho et al. (2019) |
Färber (n.d.) | |
Germany | |
| Markus Gerstmann Collection +1 other reference |
| Schnorrer et al. (2006) |
| Schnorrer et al. (2006) |
Schnorrer et al. (2006) | |
| Schnorrer et al. (2006) |
| Schnorrer et al. (2006) |
| Schnorrer et al. (2006) |
| Schnorrer et al. (2006) |
| Schnorrer et al. (2006) |
| Heinrich et al. (2017) |
| Schnorrer et al. (2006) |
Greece | |
| Rieck et al. (2018) |
Ireland | |
| Pluth et al. (2005) |
| Moreton et al. (2007) |
Italy | |
| Bortolozzi (n.d.) |
| Bortolozzi (n.d.) |
Bortolozzi (n.d.) | |
| Bortolozzi (n.d.) |
| Bortolozzi (n.d.) |
| Bortolozzi et al. (2021) |
| Pegoraro et al. (2009) +1 other reference |
Pegoraro S. et al. (2009) | |
Bortolozzi (n.d.) | |
Romania | |
| In the collection of Stephan Wolfsried. ... |
Russia | |
| Pekov et al. (2011) |
UK | |
| Betterton (2000) +1 other reference |
| |
Steve Rust collection | |
| Green et al. (2008) |
Cooper et al. (1990) +2 other references | |
| Cooper et al. (1990) +2 other references |
| Steve Rust collection |
| Rust (2022) |
S. Rust collection. | |
| S.Rust Collection |
| S Rust collection |
| S. Rust collection +1 other reference |
S Rust collection +1 other reference | |
| S Rust collection |
| S.Rust Collection |
| S Rust collection |
| S. Rust collection +1 other reference |
S. Rust collection +1 other reference | |
S. Rust collection +1 other reference | |
| S.Rust Collection |
| Green et al. (1996) +2 other references |
| S Rust collection |
| S Rust collection |
USA | |
| A. Kampf 2-2018 |
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Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK