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Mona Lisa Mine (Porter Ridge Mine; McBride Mine; Blue Bird Mine; Newton Mine), Porter Mountain, Gilham, Polk Co., Arkansas, USA

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Latitude & Longitude (WGS84): 34° 23' 30'' North , 94° 6' 0'' West
Latitude & Longitude (decimal): 34.39167,-94.10000
GeoHash:G#: 9yj5dsy3z
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate


A phosphate mine in Arkansas Novaculite located about 1 mile NE of Gilham on Porter Mountain (ridge). Started 1950 and reopened in the 1970's. Ultimate closure was in 1981. Workings featured pits, shafts & adits.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Reference: Rocks & Min.: 63:120.
Goethite
Formula: α-Fe3+O(OH)
Reference: Rocks & Min.: 63:120.
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Reference: Rocks & Min.: 63:120.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Rocks & Min.: 63:120.
Planerite
Formula: Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
Reference: Rocks & Min.: 63:120.
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Reference: Rocks & Min.: 64:295.
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Reference: Rocks & Min.: 63:120.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Goethite'4.00.α-Fe3+O(OH)
Group 8 - Phosphates, Arsenates and Vanadates
'Cacoxenite'8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
'Planerite'8.DD.15Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
'Turquoise'8.DD.15Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
'Wavellite'8.DC.50Al3(PO4)2(OH,F)3 · 5H2O
Group 9 - Silicates
'Halloysite'9.ED.10Al2(Si2O5)(OH)4
'Kaolinite'9.ED.05Al2(Si2O5)(OH)4

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)7(XO4)4Zq·xH2O
Planerite42.9.3.6Al6(PO4)2(HPO4)2(OH)8 · 4 H2O
Turquoise42.9.3.1Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O
Miscellaneous
Cacoxenite42.13.5.1Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
'Halloysite'71.1.1.4Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
H Goethiteα-Fe3+O(OH)
H HalloysiteAl2(Si2O5)(OH)4
H KaoliniteAl2(Si2O5)(OH)4
H PlaneriteAl6(PO4)2(HPO4)2(OH)8 · 4 H2O
H TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
OOxygen
O CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
O Goethiteα-Fe3+O(OH)
O HalloysiteAl2(Si2O5)(OH)4
O KaoliniteAl2(Si2O5)(OH)4
O PlaneriteAl6(PO4)2(HPO4)2(OH)8 · 4 H2O
O TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
O WavelliteAl3(PO4)2(OH,F)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(HPO4)2(OH)8 · 4 H2O
Al TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Al WavelliteAl3(PO4)2(OH,F)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(HPO4)2(OH)8 · 4 H2O
P TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
FeIron
Fe CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Fe Goethiteα-Fe3+O(OH)
Fe TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
CuCopper
Cu TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleozoic
251.902 - 541 Ma



ID: 3187973
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mississippian - Late Devonian
323.2 - 382.7 Ma



ID: 2848258
Arkansas Novaculite

Age: Paleozoic (323.2 - 382.7 Ma)

Stratigraphic Name: Arkansas Novaculite

Description: Includes upper division (Mississippian), middle division (Mississippian and Devonian), and lower division (Devonian)

Comments: Upper division -massive calcarous novaculite; middle division -dence dark novaculite interbedded with shale; and lower division-massive white nonaculite. Approximatly 950 ft. maximum thickness. This area is the type occurrence for novaculite. Novaculite refers to a dense cryptocrystalline siliceous sediment similar to chert but characterized by dominance of microcrystalline quartz over chalcedony- distinquished by polygonal triple-point texture. Original map source: Haley, B.R., Queen, J.E., and Green, G.N., United States Geological Survey Special Publication, 2000, The Geologic map of Arkansas, scale 1:500,000.

Lithology: Major:{novaculite}, Minor:{shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Rocks & Minerals: 63: 120; 64: 295
- Erickson et al. (1983)
- Mineralogical Record 28: 53.


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