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Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USAi
Regional Level Types
Mona Lisa MineMine
Porter MountainMountain
Gilham- not defined -
Polk CountyCounty
ArkansasState
USACountry

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PhotosMapsSearch
08959590017272040756555.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
01381490017272040782386.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
01925940017272040796064.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
08959590017272040756555.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
01381490017272040782386.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
01925940017272040796064.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
08959590017272040756555.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
01381490017272040782386.jpg
Turquoise

Mona Lisa Mine, Porter Mountain, Gilham, Polk County, Arkansas, USA
Latitude & Longitude (WGS84):
34° 23' 30'' North , 94° 5' 59'' West
Latitude & Longitude (decimal):
34.39167,-94.10000
GRN:
N23W56
Type:
Mine
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Wickes734 (2017)24.0km
Mena5,653 (2017)25.1km
Grannis562 (2017)27.3km
Hatfield403 (2017)27.6km
Cove373 (2017)29.0km
Mindat Locality ID:
16466
Long-form identifier:
mindat:1:2:16466:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Porter Ridge Mine; McBride Mine; Blue Bird Mine; Newton Mine


A phosphate mine in Arkansas Novaculite located about 1 mile NE of Gilham on Porter Mountain (ridge). Started in 1950 and reopened in the 1970s. Ultimate closure was in 1981. Workings featured pits, shafts & adits.
Results of an extensive study of turquoise from this locality were published by Laney (2020).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

ⓘ Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Halloysite
Formula: Al2(Si2O5)(OH)4
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Planerite
Formula: Al6(PO4)2(PO3OH)2(OH)8 · 4H2O
ⓘ Turquoise
Formula: CuAl6(PO4)4(OH)8 · 4H2O
ⓘ Wavellite
Formula: Al3(PO4)2(OH)3 · 5H2O

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘCacoxenite8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
ⓘWavellite8.DC.50Al3(PO4)2(OH)3 · 5H2O
ⓘPlanerite8.DD.15Al6(PO4)2(PO3OH)2(OH)8 · 4H2O
ⓘTurquoise8.DD.15CuAl6(PO4)4(OH)8 · 4H2O
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘHalloysite9.ED.10Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ HalloysiteAl2(Si2O5)(OH)4
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Hⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Hⓘ WavelliteAl3(PO4)2(OH)3 · 5H2O
OOxygen
Oⓘ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Oⓘ GoethiteFe3+O(OH)
Oⓘ HalloysiteAl2(Si2O5)(OH)4
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Oⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Oⓘ WavelliteAl3(PO4)2(OH)3 · 5H2O
AlAluminium
Alⓘ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Alⓘ HalloysiteAl2(Si2O5)(OH)4
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Alⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Alⓘ WavelliteAl3(PO4)2(OH)3 · 5H2O
SiSilicon
Siⓘ HalloysiteAl2(Si2O5)(OH)4
Siⓘ KaoliniteAl2(Si2O5)(OH)4
PPhosphorus
Pⓘ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Pⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Pⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Pⓘ WavelliteAl3(PO4)2(OH)3 · 5H2O
FeIron
Feⓘ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Feⓘ GoethiteFe3+O(OH)
CuCopper
Cuⓘ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O

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

Rocks & Minerals: 63: 120; 64: 295
Erickson et al. (1983)
Wenrich, Karen J. (1997) FM-TGMS-MSA Symposium on Copper and Copper Minerals (Abstracts) The Mineralogical Record, 28 (1) 51-55
Laney, S. (2020) Turquoise in the Ouachita Mountains, Mineral News: 36(9).
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