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Baxter's Hollow, Sumpter, Sauk County, Wisconsin, USAi
Regional Level Types
Baxter's HollowProtected Area
SumpterTown
Sauk CountyCounty
WisconsinState
USACountry

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Latitude & Longitude (WGS84):
43° 23' 56'' North , 89° 48' 51'' West
Latitude & Longitude (decimal):
43.39903,-89.81430
GRN:
N29W48
Type:
Protected Area
Kรถppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Bluffview742 (2017)4.5km
North Freedom706 (2017)8.0km
West Baraboo1,439 (2017)9.1km
Baraboo12,155 (2017)9.8km
Rock Springs362 (2017)13.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Madison Gem and Mineral ClubMadison, Wisconsin49km
Mindat Locality ID:
31428
Long-form identifier:
mindat:1:2:31428:9
GUID (UUID V4):
0


Sparse outcrops of Proterozoic granite (1749 +/- 12 Ma) on which the Baraboo Quartzites were deposited.
Tourmaline-bearing quartz veins cutting Proterozoic Baraboo Quartzite were sampled from several outcrops in the Baxter Hollow area, south of Baraboo.

No collecting
This property is owned and managed by The Nature Conservancy (TNC), a global environmental nonprofit working to create a world where people and nature can thrive. To maintain this preserve in a natural state for the enjoyment of all, TNC does not allow the collection of rocks, shells, minerals, metals, fossils, archaeological artifacts, soil, or any other natural material, living or dead.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals. 1 erroneous literature entry.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Albite
Formula: Na(AlSi3O8)
โ“˜ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
โ“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜ 'Chlorite Group'
โ“˜ Foitite
Formula: ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Magnetite
Formula: Fe2+Fe3+2O4
โ“˜ Microcline
Formula: K(AlSi3O8)
โ“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
โ“˜ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Hematite4.CB.05Fe2O3
โ“˜Quartz4.DA.05SiO2
Group 9 - Silicates
โ“˜Foitite ?9.CK.05โ—ป(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜Microcline9.FA.30K(AlSi3O8)
โ“˜Albite9.FA.35Na(AlSi3O8)
โ“˜var. Cleavelandite9.FA.35Na(AlSi3O8)
Unclassified
โ“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
BBoron
Bโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
Oโ“˜ AlbiteNa(AlSi3O8)
Oโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oโ“˜ HematiteFe2O3
Oโ“˜ MagnetiteFe2+Fe23+O4
Oโ“˜ MicroclineK(AlSi3O8)
Oโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oโ“˜ QuartzSiO2
Oโ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Oโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naโ“˜ AlbiteNa(AlSi3O8)
Naโ“˜ Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mgโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alโ“˜ AlbiteNa(AlSi3O8)
Alโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alโ“˜ MicroclineK(AlSi3O8)
Alโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alโ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Alโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siโ“˜ AlbiteNa(AlSi3O8)
Siโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siโ“˜ MicroclineK(AlSi3O8)
Siโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siโ“˜ QuartzSiO2
Siโ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Siโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
KPotassium
Kโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kโ“˜ MicroclineK(AlSi3O8)
Kโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kโ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
TiTitanium
Tiโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feโ“˜ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Feโ“˜ HematiteFe2O3
Feโ“˜ MagnetiteFe2+Fe23+O4

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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References

Gates, R.M. (1942) The Baxter Hollow Granite Cupola. American Mineralogist, 27:10, 699-711.
Medaris, L. G., Fournelle, J. H., Henry, D. J. (2003) Tourmaline-bearing quartz veins in the Baraboo Quartzite, Wisconsin: occurrence and significance of foitite and "oxy-foitite". The Canadian Mineralogist, 41 (3) 749-758 doi:10.2113/gscanmin.41.3.749
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