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Appleton Ridge, Appleton, Knox County, Maine, USAi
Regional Level Types
Appleton RidgeRidge
AppletonTown
Knox CountyCounty
MaineState
USACountry

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PhotosMapsSearch
01526320017272298584386.jpg
Andalusite in the Appleton Ridge Formation

Appleton Ridge, Appleton, Knox County, Maine, USA
06687290017272050951107.jpg
Andalusite, etc.

Appleton Ridge, Appleton, Knox County, Maine, USA
01526320017272298584386.jpg
Andalusite in the Appleton Ridge Formation

Appleton Ridge, Appleton, Knox County, Maine, USA
06687290017272050951107.jpg
Andalusite, etc.

Appleton Ridge, Appleton, Knox County, Maine, USA
00974660017272298598175.jpg
Andalusite in the Appleton Ridge Formation

Appleton Ridge, Appleton, Knox County, Maine, USA
06687290017272050951107.jpg
Andalusite, etc.

Appleton Ridge, Appleton, Knox County, Maine, USA
Latitude & Longitude (WGS84):
44° 18' 56'' North , 69° 13' 59'' West
Latitude & Longitude (decimal):
44.31583,-69.23306
GRN:
N30W36
Type:
Ridge
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Appleton1,321 (2017)3.3km
Searsmont1,221 (2017)5.9km
Hope1,362 (2017)8.2km
Liberty964 (2017)9.9km
Washington1,398 (2017)11.7km
Mindat Locality ID:
209787
Long-form identifier:
mindat:1:2:209787:2
GUID (UUID V4):
0


Schistose rocks of the Appleton Ridge Formation contain varying amounts of staurolite, andalusite, and sillimanite. Material may be found in the loose gravel around exposed ledges in fields, stream gravels, float boulders, etc. Marker does not indicate a specific locality. Good crystals of andalusite up to 6 cm can be found. Crystals of staurolite several cm in size may be found, but there are few that are easy to find. Nonetheless, hand specimens and cabinet specimens with abundant staurolite and andalusite crystals do occur.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘAndalusite9.AF.10Al2(SiO4)O
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ StauroliteFe22+Al9Si4O23(OH)
OOxygen
Oⓘ AndalusiteAl2(SiO4)O
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ QuartzSiO2
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ StauroliteFe22+Al9Si4O23(OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AndalusiteAl2(SiO4)O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Siⓘ AndalusiteAl2(SiO4)O
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ StauroliteFe22+Al9Si4O23(OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ StauroliteFe22+Al9Si4O23(OH)

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

West, David P., Jr., 2006, Bedrock geology of the Washington quadrangle, Maine: Maine Geological Survey, Open-File Map 06-79, color map, scale 1:24,000.
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