Location: This Rex lode prospect is at an elevation of about 550 feet on the southeast flank of Anvil Mountain, several hundred feet west of and above Dry Creek. The map location is just inside the north-central edge of section 7, T. 11 S., R. 33 W., Kateel River Meridian. It is locality 52 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
Geology: Cathcart (1922) reported several tunnels driven on calcite veins less than a foot thick in marble at this prospect. Although Cathcart did not observe quartz or sulfides, the owner reported that assays from one vein ran 0.15 to 0.2 ounce of gold per ton.
Workings: Several tunnels, 25 to 180 feet long, were driven on this deposit.
Age: Mid-Cretaceous or younger; veins cross cut marble metamorphosed in the mid-Cretaceous.

Commodities (Major) - Au (?)
Development Status: None
Deposit Model: Calcite veins in marble.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Calcite

ⓘ Gold ?

2 valid minerals.

Detailed Mineral List:

ⓘ Calcite

Formula: CaCO₃

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

ⓘ Gold ?

Formula: Au

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold ?	1.AA.05	Au
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃

List of minerals for each chemical element

C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Calcite	CaCO₃
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Au	Gold
Au	ⓘ Gold	Au

Other Databases

Link to USGS - Alaska:	NM293

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Brooks-Seward DomainDomain
Nome ComplexAccretionary Complex

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

Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722-F, p. 163-261.

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 8, 2026 06:54:19 Page updated: July 19, 2025 06:10:28

Go to top of page