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Marvie, Bastogne, Luxembourg, Wallonia, Belgiumi
Regional Level Types
Marvie- not defined -
Bastogne- not defined -

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Latitude & Longitude (WGS84): 49° 59' 8'' North , 5° 44' 48'' East
Latitude & Longitude (decimal): 49.98573,5.74685
GeoHash:G#: u0uh6g8ez
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
Bastogne14,395 (2013)2.8km
Tarchamps294 (2017)5.3km
Doncols232 (2017)6.7km
Harlange378 (2017)6.8km
Berlé110 (2017)8.7km

Several quartz veins straddling the Wardin fault situated in a large forested area.
Quartz crystals up to 20 cm have been found in several veins. Some crystals show inclusions of rutile and sometimes green chlorite phantoms have been observed.

Regions containing this locality

Eurasian PlateTectonic Plate
Rhenish Massif, EuropeMassif

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

5 valid minerals.

Detailed Mineral List:

Formula: TiO2
Reference: Harjo Neutkens collection
'Chlorite Group'
Reference: Harjo Neutkens collection
Goethite ?
Formula: α-Fe3+O(OH)
Reference: Harjo Neutkens collection
Formula: (Fe,O,OH,H2O)
Reference: Harjo Neutkens collection
Formula: SiO2
Reference: Harjo Neutkens collection
Quartz var: Milky Quartz
Formula: SiO2
Reference: Harjo Neutkens collection
Quartz var: Rock Crystal
Formula: SiO2
Habit: Very nice Dauphiné law twins are common.
Reference: Harjo Neutkens collection
Quartz var: Rutilated Quartz
Formula: SiO2
Reference: Harjo Neutkens collection
Formula: TiO2
Reference: Harjo Neutkens collection
Rutile var: Sagenite (of Saussure)
Formula: TiO2
Reference: Harjo Neutkens collection
Formula: CaTi(SiO4)O
Reference: Harjo Neutkens collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite ?4.00.α-Fe3+O(OH)
var: Milky Quartz4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
var: Rutilated Quartz4.DA.05SiO2
var: Sagenite (of Saussure)4.DB.05TiO2
Group 9 - Silicates
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Goethite ?α-Fe3+O(OH)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
var: Milky Quartz
var: Rock Crystal-SiO2
var: Rutilated Quartz-SiO2
var: Sagenite (of Saussure)

List of minerals for each chemical element

H Limonite(Fe,O,OH,H2O)
H Goethiteα-Fe3+O(OH)
O Quartz (var: Rock Crystal)SiO2
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
O RutileTiO2
O Rutile (var: Sagenite (of Saussure))TiO2
O TitaniteCaTi(SiO4)O
O AnataseTiO2
O Quartz (var: Rutilated Quartz)SiO2
O Quartz (var: Milky Quartz)SiO2
O Goethiteα-Fe3+O(OH)
Si Quartz (var: Rock Crystal)SiO2
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si Quartz (var: Rutilated Quartz)SiO2
Si Quartz (var: Milky Quartz)SiO2
Ca TitaniteCaTi(SiO4)O
Ti RutileTiO2
Ti Rutile (var: Sagenite (of Saussure))TiO2
Ti TitaniteCaTi(SiO4)O
Ti AnataseTiO2
Fe Limonite(Fe,O,OH,H2O)
Fe Goethiteα-Fe3+O(OH)

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

358.9 - 419.2 Ma

ID: 3186341
Paleozoic sedimentary rocks

Age: Devonian (358.9 - 419.2 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]

Early Devonian
393.3 - 419.2 Ma

ID: 3131497
Eisleck Schist

Age: Early Devonian (393.3 - 419.2 Ma)

Description: low grade metamorphic

Lithology: Major:{schist group}, Minor{quartzite,sandstone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hatert, F., Deliens, M., Fransolet, A.-M., and van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 pp.
Neutkens, H. (2013) Quarz aus Belgien, die aktuelle Funde von 2010 bis 2012. Mineralien-Welt, 3/2013, 14-23.

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