Ten minerals, ordered by what scratches what.
A specimen plate of muted earth-grays on cool reference paper — engraved serifs, monospaced indices, and hairline scratch-test figures. No saturation, no sheen, only ranked value from talc to diamond.
01
Talc
H 1.0
02
Gypsum
H 2.0
03
Calcite
H 3.0
04
Fluorite
H 4.0
05
Apatite
H 5.0
06
Orthoclase
H 6.0
07
Quartz
H 7.0
08
Topaz
H 8.0
09
Corundum
H 9.0
10
Diamond
H 10.0