Sample
Name
Calcite hydrothermal concretion powder (inf. 25 µm)
Date
2022-07-05
Provider
provided by Bernard Schmitt (Pers. coll. - Coll-BS-00-002).
Parent sample
Calcite hydrothermal concretion
Body name
Earth
Terrain type
mineral subsurface
Place
unknown hydrothermal station - Massif Central , Auvergne , France
Thickness
3.5 $\pm$ 0.1 $mm$
Mass
0.3 $\pm$ 0.001 $g$
Surface roughness
smooth
Comments
calcite possibly containing minor impurities, other mineral phases and significant amount of adsorbed water
Contain a small amount of Fe
Temperature
18.0 $\pm$ 2.0 $^{\circ}C$
Type
ambient air
Fluid temperature
18.0 $\pm$ 2.0 $^{\circ}C$
Fluid pressure
1.0 $bar$
Title
crushing to powder and sieving to 25 µm

Precursors

Samples

Produced sample

Sample
Calcite hydrothermal concretion powder (inf. 25 µm) (this sample)
Processing steps
Step Chronology Date Type Process Changes
#1 before layer formation 2022-07-05 mechanical raw piece of hydrothermal calcite cut and crushed in an agate mortar raw powder
#2 before layer formation 2022-07-05 mechanical raw powder sieved with 25 µm mesh powder with grain size <25 µm