Greenland: Tugtupite Syenite 1
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Fact sheet

Greenland: Tugtupite Syenite 1

Sample MTD02 collected by Michael T. Doel

Described as having tugtupite (pink mineral) and chkalovite

Rotation 1 - polylithionite KLi2Al(Si4O10)(F,OH)2

Rotation 2 - chkalovite? Na2BeSi2O6

Rotation 3 - ussingite Na2AlSi3O8(OH)

Rotation 4 - tugtupite Na4BeAlSi4O12Cl

Additional images
  • width 6 cm
  • Long wavelength UV - pink tugtupite
  • Long wavelength UV - pink tugtupite
  • width 6 cm - pink is tugtupite
  • width 6 cm
  • Long wavelength UV - pink tugtupite
60.936614, -45.902252
Ilimaussaq intrusion, Taseq Slope East, Narsaq, Kitta Province, SW Greenland
About this collection

The Ilimaussaq alkaline complex is the type locality for agpaitic nepheline syenites and represents an enormous concentration of rare elements, notably Li, Be, Nb, Zr, REE, Y, Th and U. Around 220 mineral species have been identified. We can't identify all the minerals present in these samples. Email us at if you can help.

Note we have recently expanded the collection to include other syenite complexes worldwide.

See also Alex Strekeisen's great website for more information on syenite complexes.

Sample details

Collection: Greenland
Alkaline Suite
Rock-forming mineral
Category guide  
Category Guide
Refers to any word or phrase that appears in the individual rock names. Names are generally descriptive; they allow users to search for broad terms like ‘granite’ as well as more specific names such as ‘breccia’. However, the adjacent descriptions of the specimens captures a wider range of general words and phrases and is a more powerful search tool.
Refers to any word or phrase that appears anywhere in the descriptions of the specimens
Accessory minerals
Minerals that occur in very low abundance in a rock. They are usually not visible with the naked eye and contribute perhapssver, they often dominate the rare elements such as platinum group metals.
Rock-forming minerals
Minerals that make up the bulk of all rock samples and are also the ones used in rock classi?cation.
Selecting one or more period, for example 'Jurassic'.
A term used to group together related samples that are not already gathered into a single Collection. For instance, there is a ‘SW England granites’ theme that includes such rock types as granite, hydrothermal breccia, skarn and vein samples.
A general term used to label a rock sample. It is a useful way of grouping similar samples throughout a collection. Category names are often, but not exclusively, common rock names (e.g. granite, basalt, dolerite, gabbro, greisen, skarn, gneiss, amphibolite, limestone, sandstone).
The owner of the sample that appears in the collection. For example, NASA owns all the samples that appear in the Moon Rocks collection
We would like to thank the following for the use of this sample: