According to Lewis et al, "the Avalanchie No. 13, King Edward, and King James-Virgene mines comprise the property known as the Ransome mine, Sunshine Mining Co. The workings at the Avalanchie No. 13 consist of two adits and a connecting crosscut. Uranium ore at the Avalanchie No.13 appears to be confined to a relatively continuous bed of Chinle sandstone that immediately overlies sandstone and siltstone of the Moenkopi Formation and is overlain by massive Chinle mudstone."

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Coffinite

ⓘ Erythrite

ⓘ Uraninite

3 valid minerals.

Detailed Mineral List:

ⓘ Coffinite

Formula: U(SiO₄) · nH₂O

References:

Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey

ⓘ Erythrite

Formula: Co₃(AsO₄)₂ · 8H₂O

References:

Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey

ⓘ Uraninite

Formula: UO₂

References:

Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Uraninite	4.DL.05	UO₂
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Erythrite	8.CE.40	Co₃(AsO₄)₂ · 8H₂O
Group 9 - Silicates
ⓘ	Coffinite	9.AD.30	U(SiO₄) · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Coffinite	U(SiO₄) · nH₂O
H	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
O	Oxygen
O	ⓘ Coffinite	U(SiO₄) · nH₂O
O	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
O	ⓘ Uraninite	UO₂
Si	Silicon
Si	ⓘ Coffinite	U(SiO₄) · nH₂O
Co	Cobalt
Co	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
As	Arsenic
As	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
U	Uranium
U	ⓘ Coffinite	U(SiO₄) · nH₂O
U	ⓘ Uraninite	UO₂

Other Databases

Link to USGS MRDS:	W027379

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

USA

Colorado PlateauPlateau
Manti-La Sal National ForestNational Forest

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

mrdata.usgs.gov (n.d.) https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10078764

Lewis, R.Q., Campbell, R.H, (1965), Geology and uranium deposits of Elk Ridge and vicinity, San Juan County, Utah, USGS Professional Paper 474-B.

Quick NavTop Mineral List Other Databases Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 5, 2026 07:44:26 Page updated: August 21, 2025 23:04:30

Go to top of page