Conversant

The blue crust that grows on old copper — the stone of being at home in the subject, not just loud in it.

Shattuckite · The Law of Passage

Family: Copper silicate hydroxide — Cu₅(SiO₃)₄(OH)₂
Hardness: 3.5 on the Mohs scale
Colour: Deep azure to royal blue, velvety
Signature: A secondary mineral — it forms only where another copper mineral has already lived

The stone read as the word

Shattuckite never arrives first. It grows where copper minerals have already broken down, taking their place atom by atom — a replacement so complete it keeps the old crystal's shape. To be conversant is exactly this: you have lived inside the material long enough to stand in its shape.

Collectors prize it for its saturated, matte blue — a colour that reads as certainty rather than dazzle. It does not glitter; it knows.

What it is carried for

Carried into rooms where she must hold the other side of the subject.
Held for fluency earned by time spent, not by volume.