|Latitude & Longitude (WGS84):||37° 16' North , 79° 56' West|
|Latitude & Longitude (decimal):||37.26667,-79.93333|
|Köppen climate type:||Cfa : Humid subtropical climate|
An iron mine located south of Roanoke.
Regions containing this locality
Plate - 4,950 mineral species & varietal names listed
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Detailed Mineral List:
| ⓘ Fluorwavellite|
Reference: Kempf, Anthony R., Adams, Paul L., Barwood, Henry., and Nash, Barbara P. (2017) Fluorwavellite - Al3(PO4)2(OH)2F.5H2O,the fluorine analogue of wavellite : American Mineralogist 102(4), 909-915
| ⓘ 'Limonite'|
Reference: Rocks & Min.: 20:6.
| ⓘ Wavellite|
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Reference: Rocks & Min.: 20:6; 57:22.
List of minerals arranged by Strunz 10th Edition classification
|Group 8 - Phosphates, Arsenates and Vanadates|
|ⓘ||'Wavellite'||8.DC.50||Al3(PO4)2(OH,F)3 · 5H2O|
|Unclassified Minerals, Rocks, etc.|
List of minerals arranged by Dana 8th Edition classification
|Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN|
|ⓘ||Wavellite||22.214.171.124||Al3(PO4)2(OH,F)3 · 5H2O|
|Unclassified Minerals, Rocks, etc.|
List of minerals for each chemical element
|H||ⓘ Wavellite||Al3(PO4)2(OH,F)3 · 5H2O|
|O||ⓘ Wavellite||Al3(PO4)2(OH,F)3 · 5H2O|
|F||ⓘ Wavellite||Al3(PO4)2(OH,F)3 · 5H2O|
|Al||ⓘ Wavellite||Al3(PO4)2(OH,F)3 · 5H2O|
|P||ⓘ Wavellite||Al3(PO4)2(OH,F)3 · 5H2O|
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
251.902 - 541 Ma
|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. 
485.4 - 541 Ma
Age: Cambrian (485.4 - 541 Ma)
Stratigraphic Name: Rome Formation
Description: Pumpkin Valley Shale and Rome Formation. Pumpkin Valley Shale (Bridge, 1945). Shale, light-greenish-gray to dark-greenish-gray, grayish-brown, and maroon; a few beds of similar colored siltstone; sparse beds of limestone and dolostone. The Pumpkin Valley Shale conformably overlies the Rome Formation. The formation is approximately 350 feet thick. Harris (1964) identified the Pumpkin Valley Shale of Southwest Virginia as a formation within the Conasauga Group; however, because of similar lithologies it is often indistinguishable from the Rome Formation and the two formations commonly are mapped together. Rome Formation (Hayes, 1891). Siltstone, shale, sandstone, dolostone, and limestone. Siltstone and shale, greenish-gray and grayish-red, laminated to thin-bedded. Sandstone, micaceous, locally glauconitic, greenish-gray and reddish-gray, very-fine- to medium-grained, thin-bedded. Dolostone, light- to dark-gray, aphanic to medium-grained, thin-to massive-bedded, with ripple marks and mudcracks. Lime stone, argillaceous, very-light-gray to dark-gray, thin- to medium- bedded. Carbonate rocks range from sparse 1- to 2- feet-thick beds in western Scott County to discontinuous units as much as 50 feet thick which comprise 30 to 40 percent of the formation in western Russell and Washington counties (Evans and Troensegaard, 1991; Bartlett and Webb, 1971). Maximum recorded thickness is 1500 feet in the Clinchport area (Brent, 1963); although this may have included the Pumpkin Valley Shale. A complete thickness has not been determined because the lowermost part of the Rome Formation is normally absent due to faulting.
Comments: Includes Pumpkin Valley Shale where present; Appalachian Plateaus and Valley and Ridge Original map source: Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000.
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.