Nitrate deposits located in/around T1S, R23 & 24E, SBM, in the area from where the Santa Fe Railroad crosses the Colorado River in San Bernardino County, South to the Vivet Eye peak (not reflected by name on topo maps) in the extreme NE corner of Riverside County, in all comprising about 10 square miles.

NOTE: The geographic coordinates presented are arbitrary to the extreme NE corner of Riverside County and serve only to place this locality in context.

Mineralization is nitrates occurring as surface efflorescences, in shales of lake beds, on slopes of hills and heavier deposits to about 1 foot (0.3 meter) or more thick, chiefly in porous volcanic breccias. Abundance decreases rapidly with depth.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Arcanite

6 valid minerals.

Detailed Mineral List:

ⓘ Arcanite

Formula: K₂SO₄

References:

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

ⓘ Epsomite

Formula: MgSO₄ · 7H₂O

References:

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

ⓘ Halite

Formula: NaCl

References:

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

ⓘ Niter

Formula: KNO₃

References:

Turner, Henry Ward (1907), The sodium nitrate deposits of the Colorado: Mining and Scientific Press: 94: 634-636

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

ⓘ Nitratine

Formula: NaNO₃

References:

Turner, Henry Ward (1907), The sodium nitrate deposits of the Colorado: Mining and Scientific Press: 94: 634-636

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

Noble, Levi Fatzinger (1931), Nitrate deposits in southeastern California, with notes on deposits in southeastern Arizona and southwestern New Mexico: USGS Bulletin 820: 54

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Thénardite

Formula: Na₂SO₄

References:

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
Group 5 - Nitrates and Carbonates
ⓘ	Nitratine	5.NA.05	NaNO₃
ⓘ	Niter	5.NA.10	KNO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Arcanite	7.AD.05	K₂SO₄
ⓘ	Thénardite	7.AD.25	Na₂SO₄
ⓘ	Epsomite	7.CB.40	MgSO₄ · 7H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Epsomite	MgSO₄ · 7H₂O
N	Nitrogen
N	ⓘ Nitratine	NaNO₃
N	ⓘ Niter	KNO₃
O	Oxygen
O	ⓘ Arcanite	K₂SO₄
O	ⓘ Epsomite	MgSO₄ · 7H₂O
O	ⓘ Nitratine	NaNO₃
O	ⓘ Niter	KNO₃
O	ⓘ Thénardite	Na₂SO₄
Na	Sodium
Na	ⓘ Halite	NaCl
Na	ⓘ Nitratine	NaNO₃
Na	ⓘ Thénardite	Na₂SO₄
Mg	Magnesium
Mg	ⓘ Epsomite	MgSO₄ · 7H₂O
S	Sulfur
S	ⓘ Arcanite	K₂SO₄
S	ⓘ Epsomite	MgSO₄ · 7H₂O
S	ⓘ Thénardite	Na₂SO₄
Cl	Chlorine
Cl	ⓘ Halite	NaCl
K	Potassium
K	ⓘ Arcanite	K₂SO₄
K	ⓘ Niter	KNO₃

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

USA

⭔Colorado River Indian ReservationReservation

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

Turner, Henry Ward (1907), The sodium nitrate deposits of the Colorado: Mining and Scientific Press: 94: 634-636

Ingalls, Walter Renton, ed. (1908) The Mineral Industry, Its Statistics, Technology and Trade during 1907, Vol. XVI, Hill Publishing Co., New York & London: 833.

Noble, Levi Fatzinger (1931), Nitrate deposits in southeastern California, with notes on deposits in southeastern Arizona and southwestern New Mexico: USGS Bulletin 820: 54

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 279, 342.

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

Quick NavTop Mineral List 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 3, 2026 08:08:48 Page updated: October 25, 2025 01:27:53

Go to top of page