The anortosite rock is altered to kaolinite along the hanging wall of a porphyric diabase vein, and kaolinite has been produced from a 20x5x3m pit, as well as three other, smaller workings nearby. The occurrence is interpreted as a hydrothermal alteration of the anorthosite near the diabase veins. The kaolinite was of poor quality ( containing a larte portion of feldspar grains). There are no kaolinite left at the locality today.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Kaolinite

1 valid mineral.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Anorthosite

ⓘ 'Dolerite'

Detailed Mineral List:

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

aps.ngu.no (n.d.) http://aps.ngu.no/pls/oradb/minres_deposit_fakta.Main?p_objid=7970&p_spraak=E

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	Oxygen
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	Aluminium
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	Silicon
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄

Other Databases

Link to Geological Survey of Norway:	7970

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield

Eurasian PlateTectonic Plate

Baltic Shield
- Sveconorwegian BeltShield

ScandinaviaRegion

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

Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1111 - 302. Dydland (Last updated 16.aug.2016).

Quick NavTop Mineral List Rock Types 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 12:16:00 Page updated: July 25, 2025 03:53:42

Go to top of page

Dydland, Sokndal, Rogaland, NorwayiRegional Level TypesDydlandOccurrence SokndalMunicipality RogalandCounty NorwayCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }