Matter
Name
Dark basalt (200-400 µm grains)
Family
solid
Origins
natural terrestrial
Provider
C. Okubo
Body name
Earth
Place
Collected from the active dunes in the Kau Desert region, Hawaii, USA , Hawaii , United States
Preparation
sieved fraction
Phase type
solid
Component type (group)
igneous rock (unknown)
Shape
loose powder
Texture
compact glassy
Type of porosity
open pores
Grain sizes
Grains Size min Size max Size median Size width Size mass fraction Grain shape
#1 200.0 ${\mu}m$ 400.0 ${\mu}m$ 1.0 None
Size method
dry sieving
Number
1
Mode of mixing
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Basalt 1.0
Title
Preparation of the 200-400 µm grains of Dark basalt

Precursors

Matters

Produced matter

Matter
Dark basalt (200-400 µm grains) (this matter)
Processing steps
Step Date Type Process Changes
#1 mechanical dry sieving using a 200-µm mesh sieve and a 400-µm mesh sieve only the grains with size comprised between 200 and 400 µm were collected