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de Linde Pits, Dug Hill, Avant, Garland Co., Arkansas, USA

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Latitude & Longitude (WGS84): 34° 40' 13'' North , 93° 19' 46'' West
Latitude & Longitude (decimal): 34.67032,-93.32953
GeoHash:G#: 9yjthpx90
Locality type:Group of Pits
Köppen climate type:Cfa : Humid subtropical climate


Mineralization is in Bigfork Chert. Located 1½ miles North of Avant.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

de Linde Pits

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Description: Occurs in Bigfork Chert.
Reference: Rocks & min.:63:107.; Rocks & Minerals (2010) 85:346-350
Quartz
Formula: SiO2
Reference: Rocks & Minerals (2010) 85:346-350
Variscite
Formula: AlPO4 · 2H2O
Reference: Rocks & Minerals (2010) 85:346-350
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Description: Occurs in Bigfork Chert.
Reference: Rocks & min.:63:107.; Rocks & Minerals (2010) 85:346-350

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
'Crandallite'8.BL.10CaAl3(PO4)(PO3OH)(OH)6
'Variscite'8.CD.10AlPO4 · 2H2O
'Wavellite'8.DC.50Al3(PO4)2(OH,F)3 · 5H2O

List of minerals arranged by Dana 8th Edition classification

Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Variscite40.4.1.1AlPO4 · 2H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Crandallite42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H VarisciteAlPO4 · 2H2O
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
OOxygen
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O QuartzSiO2
O VarisciteAlPO4 · 2H2O
O WavelliteAl3(PO4)2(OH,F)3 · 5H2O
FFluorine
F WavelliteAl3(PO4)2(OH,F)3 · 5H2O
AlAluminium
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al VarisciteAlPO4 · 2H2O
Al WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SiSilicon
Si QuartzSiO2
PPhosphorus
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P VarisciteAlPO4 · 2H2O
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
CaCalcium
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6

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]

Late Ordovician - Middle Ordovician
443.8 - 470 Ma



ID: 2850863
Pole Creek Shale (Upper Ordovician) and Bigfork Chert (Upper and Middle Ordovician)

Age: Ordovician (443.8 - 470 Ma)

Stratigraphic Name: Polk Creek Shale; Bigfork Chert

Description: Polk Creek Shale (Upper Ordovician) and Bigfork Chert (Upper and Middle Ordovician)

Comments: Pole Creek Shale-black shale cherty in parts (300 ft.); Bigfork Chert-thin bedded gray chert inter bedded with limestone and some shale (800 ft.). Approximatly 1100 ft. maximum thickness. 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:{chert,shale}, Minor:{limestone}

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 (2010) 85:346-350
Rocks & Minerals:63:107; Stone, et al(1982).


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