mineral

Apatite

Apatite as a mineral people have named and used. Growth spark, appetite for skill, clear aim — one living kind, not a single symbol.

Apatite is historically related to Workshop.
In Cooley's Cyclopædia of Practical Receipts, Apatite is treated as shop gear; the piece belongs on the bench.
from Arnold James Cooley · Cyclopædia of Practical Receipts, 6th ed. (PD; Gutenberg #39733 / #41957)
historically related to · sourced · documented
Apatite is historically related to Leather.
In Cooley's Cyclopædia of Practical Receipts, Apatite and Leather are named as companions in the same handbook speech.
from Arnold James Cooley · Cyclopædia of Practical Receipts, 6th ed. (PD; Gutenberg #39733 / #41957)
historically related to · sourced · documented
Apatite is historically related to Anvil.
In Cooley's Cyclopædia of Practical Receipts, Apatite is placed beside Anvil as concrete shop companions.
from Arnold James Cooley · Cyclopædia of Practical Receipts, 6th ed. (PD; Gutenberg #39733 / #41957)
historically related to · sourced · documented
Apatite is historically related to Nail.
In Cooley's Cyclopædia of Practical Receipts, Apatite is placed beside Nail as concrete shop companions.
from Arnold James Cooley · Cyclopædia of Practical Receipts, 6th ed. (PD; Gutenberg #39733 / #41957)
historically related to · sourced · documented