Matter
Name
Volcanic tuff / Corent - 50-100µm grains
Family
mineral
Parent matter
Volcanic tuff (Corent)
Level
local matter
Origins
natural terrestrial
Provider
IPAG
Local reference code
Tuff (Corent) 50-100mic
Body name
Earth
Terrain type
mineral subsurface
Place
Grande carrière de pouzzolane de Corent (Puy-de-Dôme) , Auvergne-Rhône-Alpes , France

Coordinates

System
WGS84
Position type
point
Geolocation
Point Latitude Longitude Altitude
#1 45.6598° 3.1844°
Comments
scree at the bottom of the quarry
Preparation
sieved fraction
Method
sieved between meshes of 50 and 100µm
Phase type
solid
Component type (group)
igneous rock (pyroclastic rock or sediment)
Texture
pulverulent
Type of porosity
open pores
Grain sizes
Grains Size min Size max Size median Size width Size mass fraction Grain shape
#1 50.0 ${\mu}m$ 100.0 ${\mu}m$ 1.0 irregular
Size distribution
important coating of a very fine dust on the surface of the smallest grains
Size method
sieved between meshes of 50 and 100µm
Comments
complex shapes
Oxides
Formula $SiO_{2}$ $Al_{2}O_{3}$ $Fe_{2}O_{3}$ $TiO_{2}$ $CaO$ $MgO$ $Na_{2}O$ $K_{2}O$
Mass fraction (%) 43.0 13.4 13.0 4.0 11.82 7.59 2.8 1.76
Oxides comments
loss on ignition: 2.25% - average values over the quarry
Number
1
Mode of mixing
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Pozzolan 1.0
Title
Sieving 50-100 µm grains of volcanic tuff

Precursors

Matters

Produced matter

Matter
Volcanic tuff / Corent - 50-100µm grains (this matter)
Processing steps
Step Date Type Process Changes
#1 2006-01-01 mechanical grinding the raw matter from block to powder
#2 2006-01-01 mechanical manual dry sieving of the raw matter between sieve meshes of 50 and 100µm powder with grain size between 50 and 100µm