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Höwenegg Quarry (Hewenegg Quarry), Immendingen, Tuttlingen, Freiburg Region, Baden-Württemberg, Germanyi
Regional Level Types
Höwenegg Quarry (Hewenegg Quarry)Open-Cast Mine (Flooded)
ImmendingenMunicipality
TuttlingenDistrict
Freiburg RegionRegion
Baden-WürttembergState
GermanyCountry

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Latitude & Longitude (WGS84):
47° 54' 42'' North , 8° 44' 24'' East
Latitude & Longitude (decimal):
47.91194,8.74027
GeoHash:
G#: u0w0wfh7r
GRN:
N32E05
Type:
Open-Cast Mine (Flooded) - last checked 2020
Age:
252.17 ± 0.06 to 247.2 Ma
Geologic Time:
Early/Lower Triassic
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Immendingen5,945 (2011)2.4km
Hausen740 (2018)4.9km
Engen10,190 (2013)6.8km
Geisingen6,048 (2013)6.9km
Neuhausen3,838 (2013)8.7km
Mindat Locality ID:
1825
Long-form identifier:
mindat:1:2:1825:1
GUID (UUID V4):
e5f21c2d-13d1-45df-9597-eb010fd49c5a
Other Languages:
German:
Steinbruch Höwenegg (Steinbruch Hewenegg), Immendingen, Kreis Tuttlingen, Regierungsbezirk Freiburg, Baden-Württemberg, Deutschland


A quarry in a Lower Tertiary nepheline-basalt, which was abandoned in 1979 and forms part of a protected area since 1983. Höwenegg mountain, where the quarry is situated, is also a very important locality for Tertiary fossil mammals. NOTE: Collecting here is strictly prohibited.
Located about 3 km south of Immendingen.

This quarry is the type locality of amicite, which was discovered by Otto Krumm in thin veins of the melilite-nephelinite rock and provided for research. The first description was made by Alberti, Hentschel & Vezzalini in 1979 (see reference). Amicite is associated with merlinoite, calcite and aragonite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


26 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

✪ Amicite (TL)
Formula: K2Na2Al4Si4O16 · 5H2O
Type Locality:
Habit: pseudotetragonal dipyramids under 1mm in diameter exibiting forms {110}, {011}, and rarely {111}, twining common
Colour: colorless
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ 'Apophyllite Group'
Formula: AB4[Si8O22]X · 8H2O
ⓘ Aragonite
Formula: CaCO3
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Celadonite
Formula: K(MgFe3+◻)(Si4O10)(OH)2
ⓘ 'Chabazite'
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Fayalite-Forsterite Series'
ⓘ Garronite-Ca
Formula: Na2Ca5Al12Si20O64 · 27H2O
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Harmotome
Formula: Ba2(Si12Al4)O32 · 12H2O
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ 'Limonite'
ⓘ Magnesite
Formula: MgCO3
ⓘ Makatite
Formula: Na2Si4O8(OH)2 · 4H2O
ⓘ 'Melilite Group'
Formula: Ca2M(XSiO7)
ⓘ Merlinoite
Formula: (K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
ⓘ Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Mountainite
Formula: KNa2Ca2[Si8O19(OH)] · 6H2O
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Offretite
Formula: KCaMg(Si13Al5)O36 · 15H2O
ⓘ 'Paulingite Subgroup'
ⓘ 'Phillipsite Subgroup'
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Scolecite
Formula: CaAl2Si3O10 · 3H2O
ⓘ Spinel
Formula: MgAl2O4
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
ⓘ Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
ⓘ Tobermorite
Formula: Ca4Si6O17(H2O)2 · (Ca · 3H2O)
ⓘ Tridymite
Formula: SiO2

Gallery:

K2Na2Al4Si4O16 · 5H2Oⓘ Amicite (TL)
CaCO3ⓘ Calcite
Na2Ca2Si9Al6O30 · 8H2Oⓘ Mesolite
(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2Oⓘ Montmorillonite
Na2Al2Si3O10 · 2H2Oⓘ Natrolite
KCaMg(Si13Al5)O36 · 15H2Oⓘ Offretite
ⓘ 'Phillipsite Subgroup'
NaCa2[Al5Si5O20] · 6H2Oⓘ Thomsonite-Ca

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
Group 4 - Oxides and Hydroxides
ⓘSpinel4.BB.05MgAl2O4
ⓘTridymite4.DA.10SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMagnesite5.AB.05MgCO3
ⓘAragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘTobermorite9.DG.10Ca4Si6O17(H2O)2 · (Ca · 3H2O)
ⓘCeladonite9.EC.15K(MgFe3+◻)(Si4O10)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘMakatite9.EE.45Na2Si4O8(OH)2 · 4H2O
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘScolecite9.GA.05CaAl2Si3O10 · 3H2O
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘMesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
ⓘThomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘAmicite (TL)9.GC.05K2Na2Al4Si4O16 · 5H2O
ⓘGarronite-Ca9.GC.05Na2Ca5Al12Si20O64 · 27H2O
ⓘHarmotome9.GC.10Ba2(Si12Al4)O32 · 12H2O
ⓘMerlinoite9.GC.15(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
ⓘOffretite9.GD.25KCaMg(Si13Al5)O36 · 15H2O
ⓘMountainite9.GG.10KNa2Ca2[Si8O19(OH)] · 6H2O
Unclassified
ⓘ'Phillipsite Subgroup'-
ⓘ'Limonite'-
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Chabazite'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Apophyllite Group'-AB4[Si8O22]X · 8H2O
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Melilite Group'-Ca2M(XSiO7)
ⓘ'Paulingite Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Hⓘ MakatiteNa2Si4O8(OH)2 · 4H2O
Hⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Hⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Hⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ ScoleciteCaAl2Si3O10 · 3H2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Hⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Hⓘ TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
Cⓘ MagnesiteMgCO3
OOxygen
Oⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Oⓘ AragoniteCaCO3
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Oⓘ MagnesiteMgCO3
Oⓘ MakatiteNa2Si4O8(OH)2 · 4H2O
Oⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Oⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Oⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ ScoleciteCaAl2Si3O10 · 3H2O
Oⓘ SpinelMgAl2O4
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Oⓘ TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)
Oⓘ TridymiteSiO2
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Melilite GroupCa2M(XSiO7)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Naⓘ MakatiteNa2Si4O8(OH)2 · 4H2O
Naⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Naⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Naⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Mgⓘ MagnesiteMgCO3
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Alⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Alⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Alⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ ScoleciteCaAl2Si3O10 · 3H2O
Alⓘ SpinelMgAl2O4
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Alⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ Apophyllite GroupAB4[Si8O22]X · 8H2O
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Siⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Siⓘ MakatiteNa2Si4O8(OH)2 · 4H2O
Siⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Siⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Siⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ ScoleciteCaAl2Si3O10 · 3H2O
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Siⓘ TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)
Siⓘ TridymiteSiO2
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Melilite GroupCa2M(XSiO7)
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GypsumCaSO4 · 2H2O
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ AmiciteK2Na2Al4Si4O16 · 5H2O
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Kⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Kⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
Caⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Caⓘ MountainiteKNa2Ca2[Si8O19(OH)] · 6H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ OffretiteKCaMg(Si13Al5)O36 · 15H2O
Caⓘ ScoleciteCaAl2Si3O10 · 3H2O
Caⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Caⓘ TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Melilite GroupCa2M(XSiO7)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CuCopper
Cuⓘ ChalcopyriteCuFeS2
BaBarium
Baⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Baⓘ Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Der Aufschluss 1981(4), 130-134.
Grubenmann, U. (1886): Die Basalte des Hegaus, eine petrographische Studie, Dissertation Zürich, J. Hübner´s Buchdruckerei, Frauenfeld.
Weber, J. (1899): Ueber die Geologie des Hegaus, Mitteilungen der Naturwissenschaftlichen Gesellschaft in Winterthur, II. Heft.
Glas, M. and Schmeltzer, H. (1976) Mineralfundstellen Band 3, Baden-Württemberg. Chr. Weise Verlag, München, 198 pp. (in German).
Alberti, A., Hentschel, G., Vezzalini, G. (1979) Amicite, a new natural zeolite. Neues Jahrbuch für Mineralogie - Monatshefte, 1979. 481-488
Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp.
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