OC002 matrix fragments | GhoSST | SSHADE

Sample

Name: OC002 matrix fragments

Owner of sample

Database

GhoSST

Experimentalists

Lydie Bonal

Origin of sample

Date: 2024-11-07

Physical characteristics

Thickness: 10.0 $\pm$ 10.0 ${\mu}m$
Diameter: 50.0 ${\mu}m$
Substrate material: synthetic type IIa diamond windows
Comments: manual selection under binocular of about 15 fragments of approximate diameter of 30-50 microns
matrix composed of minerals (hydrated and not hydrated) and organics

Sample environment: Temperature

Temperature: 22.0 $\pm$ 2.0 $^{\circ}C$
Temperature max: 22.0 $\pm$ 2.0 $^{\circ}C$

Sample environment: Fluid

Type: vacuum
Fluid pressure: 2.5e-05 $\pm$ 1.0e-06 $mbar$
Comments: spectrum acquired under vacuum varying from 6.4 to 2.1 x 10-5 mbar

Layers in sample

Number

1

Layers

OC002 matrix fragments , 10.0 ${\mu}m$

Sample processings

Title

selection of the grains

Precursors

Matters

Oued Chebeika CI chondrite

Produced sample

Sample

OC002 matrix fragments (this sample)

Processing steps

Step	Chronology	Date	Type	Process	Changes
#1	before layer formation		mechanical	Manual selection under optical binocular of about 15 fragments of about 30-50 microns diameter. Fragments selected based on their black color and on its fine-grained texture
#2	during layer formation		mechanical	Fragments pressed between two synthetic type IIa diamond windows with a mechanical press	fragments crushed down to a thickness of about 10 microns