Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time

Minerals by Properties Minerals by Chemistry Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz

Photo Search Photo Galleries Search by Color New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

N'Drahamcha Quarry, Nouakchott District, Mauritania

This page is currently not sponsored. Click here to sponsor this page.

Photos Maps Search

Standard

Add Photo

Map Pages Nearest Localities Use Map in Article

Mineral Search Similar Localities Predictive Mineralogy Search Google

Key

Lock Map

Latitude & Longitude (WGS84):	18° 35' North , 15° 45' West
Latitude & Longitude (decimal):	18.58333,-15.75000
GeoHash:	G#: eekc9wgpy
Locality type:	Quarry
Köppen climate type:	BWh : Hot deserts climate

A gypsum mine located 50 km NE of Nouakchott. Closed April, 1981 and reopened November, 1984. Owned by Société Arabe des Industries Métallurgiques Mauritano-Koweitiennes (Samia). Mine has a capacity of 120,000 tons/year.

Regions containing this locality

Sahara Desert, North Africa

Desert - 721 mineral species & varietal names listed

Sahara Desert

Desert - 611 mineral species & varietal names listed

West Africa

UN Subregion - 548 mineral species & varietal names listed

Northwest Africa Meteorites

Meteorite Fall Location - 864 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

ⓘ Gypsum

1 valid mineral.

Detailed Mineral List:

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Reference: Mining Ann. Review (1985): 461.

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	'Gypsum'	7.CD.40	CaSO₄ · 2H₂O

List of minerals arranged by Dana 8th Edition classification

Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO₄·xH₂O
ⓘ	Gypsum	29.6.3.1	CaSO₄ · 2H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Gypsum	CaSO₄ · 2H₂O
O	Oxygen
O	ⓘ Gypsum	CaSO₄ · 2H₂O
S	Sulfur
S	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	Calcium
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O

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

Quaternary 0 - 2.588 Ma ID: 3307343	Age: Pleistocene (0 - 2.588 Ma) Lithology: Sedimentary Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]
Neogene 2.588 - 23.03 Ma ID: 3185124	Cenozoic sedimentary rocks Age: Neogene (2.588 - 23.03 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]

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)

- Mining Annual Review (1985): 461.

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.

Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, 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.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 09:38:30 Page updated: November 13, 2018 15:36:41

Go to top of page