Botryogen
A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
About Botryogen
Formula:
MgFe3+(SO4)2(OH) · 7H2O
Colour:
Light to dark orange-red; pale to dark orange
Lustre:
Vitreous
Hardness:
2 - 2½
Specific Gravity:
2.14
Crystal System:
Monoclinic
Name:
From the Greek βότρυς = "bunch of grapes" and γεννάν = "to bear", in allusion to the appearance of the original botryoidal and stalactitic masses found at Falun, Sweden.
Type Locality:
Chemically similar to magnesiocopiapite, mountkeithite, and slavíkite.
Crystal structure details (Majzlan et al., 2016): (1) 2 Fe sites; (2) Fe(SO4)2(OH)(H2O)2 chains cross-linked by Mgϕ6 polyhedra (ϕ - unspecified ligand); (3) three transformer water groups with [3]O and two non-transformer with [4]O.
Crystal structure details (Majzlan et al., 2016): (1) 2 Fe sites; (2) Fe(SO4)2(OH)(H2O)2 chains cross-linked by Mgϕ6 polyhedra (ϕ - unspecified ligand); (3) three transformer water groups with [3]O and two non-transformer with [4]O.
Unique Identifiers
Mindat ID:
733
Long-form identifier:
mindat:1:1:733:7
GUID
(UUID V4):
(UUID V4):
8b4474b1-5539-4ebf-b009-3153a9fcb43e
IMA Classification of Botryogen
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Botryogen
7.DC.25
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
C : With only medium-sized cations; chains of edge-sharing octahedra
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
C : With only medium-sized cations; chains of edge-sharing octahedra
31.9.6.1
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
25.11.19
25 : Sulphates
11 : Sulphates of Fe and other metals
25 : Sulphates
11 : Sulphates of Fe and other metals
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 |
---|---|---|
Byg | 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 Botryogen
Vitreous
Transparency:
Transparent, Translucent
Colour:
Light to dark orange-red; pale to dark orange
Streak:
Ocher-yellow
Hardness:
2 - 2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {010}, perfect; on {110}, good.
On {010}, perfect; on {110}, good.
Fracture:
Irregular/Uneven, Conchoidal
Density:
2.14 g/cm3 (Measured) 2.23 g/cm3 (Calculated)
Optical Data of Botryogen
Type:
Biaxial (+)
RI values:
nα = 1.522 nβ = 1.529 nγ = 1.577
2V:
Measured: 41° , Calculated: 44°
Max Birefringence:
δ = 0.055
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:
Low
Dispersion:
none
Optical Extinction:
X = b; Z ∧ c = 12°.
Pleochroism:
Visible
Comments:
X = Colourless to light brown; Y = Cinnamon-brown; Z = Golden yellow
Chemistry of Botryogen
Mindat Formula:
MgFe3+(SO4)2(OH) · 7H2O
Common Impurities:
Zn,Mn
Crystallography of Botryogen
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.49(2) Å, b = 17.84(1) Å, c = 7.12(2) Å
β = 100.16(17)°
β = 100.16(17)°
Ratio:
a:b:c = 0.588 : 1 : 0.399
Unit Cell V:
1,311.55 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals prismatic [001]; smaller crystals commonly long prismatic; large crystals short prismatic with {101} large and often striated [100]. The vertical zone is striated [001]. Reniform, botryoidal, or globular aggregates with a radiating structure and crystalline surfaces.
Comment:
Space group setting is P21/n
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0014694 | Botryogen | Suesse P (1967) Die kristallstruktur des botryogens Naturwissenschaften 54 139-139 | 1967 | Quetena, Chile | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
8.87 Å | (FFF) |
2.998 Å | (F) |
6.29 Å | (mF) |
5.11 Å | (mF) |
5.47 Å | (f) |
3.86 Å | (f) |
3.41 Å | (f) |
Comments:
Quetena, Chile. Data from Cesbron (1964).
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 Botryogen
Place of Conservation of Type Material:
Natural History Museum, London, United Kingdom, number BM 1956,315 (holotype).
Natural History Museum, Wien, Austria, number A.a.185 (type?).
Natural History Museum, Wien, Austria, number A.a.185 (type?).
Synonyms of Botryogen
Other Language Names for Botryogen
French:Fer sulfaté rouge
Neoplase
Neoplase
Italian:Botriogeno
Japanese:ボトリオゲン
Russian:Ботриоген
Simplified Chinese:赤铁矾
Swedish:Rother Eisen-Vitriol
Common Associates
Associated Minerals Based on Photo Data:
45 photos of Botryogen associated with Copiapite | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O |
32 photos of Botryogen associated with Halotrichite | FeAl2(SO4)4 · 22H2O |
18 photos of Botryogen associated with Parabutlerite | Fe3+(SO4)(OH) · 2H2O |
8 photos of Botryogen associated with Pickeringite | MgAl2(SO4)4 · 22H2O |
6 photos of Botryogen associated with Butlerite | Fe3+(SO4)(OH) · 2H2O |
5 photos of Botryogen associated with Halotrichite-Pickeringite Series | |
3 photos of Botryogen associated with Redingtonite | (Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2O |
3 photos of Botryogen associated with Chalcanthite | CuSO4 · 5H2O |
2 photos of Botryogen associated with Selenite | CaSO4 · 2H2O |
2 photos of Botryogen associated with Knoxvillite | MgFe3+4(SO4)6(OH)2 · 20H2O |
Related Minerals - Strunz-mindat Grouping
7.DC.05 | Aluminite | Al2(SO4)(OH)4 · 7H2O |
7.DC.05 | Meta-aluminite | Al2(SO4)(OH)4 · 5H2O |
7.DC.10 | Butlerite | Fe3+(SO4)(OH) · 2H2O |
7.DC.10 | Parabutlerite | Fe3+(SO4)(OH) · 2H2O |
7.DC.15 | Fibroferrite | Fe3+(SO4)(OH) · 5H2O |
7.DC.20 | Xitieshanite | Fe3+(SO4)Cl · 6H2O |
7.DC.25 | Zincobotryogen | (Zn,Mg,Mn2+)Fe3+(SO4)2(OH) · 7H2O |
7.DC.30 | Chaidamuite | ZnFe3+(SO4)2(OH) · 4H2O |
7.DC.30 | Guildite | CuFe3+(SO4)2(OH) · 4H2O |
7.DC.40 | Pauladamsite | Cu4(SeO3)(SO4)(OH)4 · 2H2O |
7.DC.45 | Riotintoite | Al(SO4)(OH) · 3H2O |
7.DC.50 | Thorneite | Pb6(Te6+2O10)(CO3)Cl2(H2O) |
7.DC.55 | Vendidaite | Al2(SO4)(OH)3Cl · 6H2O |
Other Information
Notes:
Partially soluble in boiling water, rendering an ocherous residue. Soluble in 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 Botryogen
mindat.org URL:
https://www.mindat.org/min-733.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
References for Botryogen
Reference List:
Cesbron, Fabien (1964) Contribution à la Minéralogie des sulfates de fer hydratés. Bulletin de Minéralogie, 87 (2). 125-143 doi:10.3406/bulmi.1964.5721
Localities for Botryogen
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.
Argentina | |
| |
Australia | |
| |
Austria | |
| |
| |
Brazil | |
| |
Chile | |
| |
| |
| |
| |
| |
| Kampf, A. R., Mills, S. J., Nash, B. P., Housley, R. M., Rossman, G. R., Dini, M. (2013) Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)·1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite. Mineralogical Magazine, 77 (4) 453-465 doi:10.1180/minmag.2013.077.4.05 |
Kampf, A. R., Mills, S. J., Nash, B. P., Housley, R. M., Rossman, G. R., Dini, M. (2013) Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)·1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite. Mineralogical Magazine, 77 (4) 453-465 doi:10.1180/minmag.2013.077.4.05 | |
| |
China | |
| |
| |
France | |
| |
Germany | |
| |
| |
Greece | |
| |
Hungary | |
| |
| |
| |
Iran | |
| |
Italy | |
| |
| |
| |
| |
| |
Japan | |
| |
Jordan | |
| |
Pakistan | |
| Niazi, Shaheer (2023) Personal Communication. Identified by Shaheer Niazi: Visual Identification, Inferred (explain how), Wet Chemical |
Peru | |
| |
Slovakia | |
| |
Spain | |
| |
Sweden | |
| |
| |
Ukraine | |
| |
USA | |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
|
Quick NavTopAbout BotryogenUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Libiola Mine, Sestri Levante, Genoa, Liguria, Italy