Sample
Name
Pigment La Rousse (PIG-0183-2017), red crinoidal limestone - polished slice
Date
2017-04-03
Provider
Pigmenthothèque - EDYTEM
Body name
Earth
Terrain type
mineral surface
Place
La Rousse, Gravières (Ardèche) , Auvergne-Rhône-Alpes , France

Coordinates

System
WGS84
Position type
point
Geolocation
Point Latitude Longitude Altitude
#1 44.3858° 4.2244° 115.0 m
Thickness
7.0 $\pm$ 0.2 $mm$
Diameter
26.0 $mm$
Surface roughness
polished
Substrate material
resin araldite epoxy AR2020
Substrate comments
both faces of the slice are polished and free of resin
Comments
limestone with mixed hematite on one side of the plot with horizontal gradient towards limestone with mixed goethite on the other side. Plot size is about 35 x 26 mm
measured on face 2, on the yellow-orange part (spot #4)
Temperature
298.0 $\pm$ 1.0 $K$
Temperature max
300.0 $K$
Type
ambient air
Fluid temperature
298.0 $\pm$ 1.0 $K$
Fluid pressure
1.0 $bar$
Comments
room conditions