The Gem CabinetDay 9 · A Gem of Character
Fluorite Octahedron — the gem of Congruent
Fluorite Octahedron

The Sovereign CEO · WHO she is

Congruent

A crystal that breaks into perfect matching triangles — inside agrees with outside.

Fluorite Octahedron · The Law of Purpose

Family
Calcium fluoride — CaF₂
Hardness
4 — it defines that point on the Mohs scale
Colour
Green, purple, blue, yellow, often banded in one crystal
Signature
Perfect octahedral cleavage; fluorescence is named after this mineral

The stone read as the word

Cleave a fluorite cube and it opens into an octahedron with faces as flat and true as the outer ones. The order runs all the way through; there is no different material hiding inside. That is congruence.

It also glows under ultraviolet light — the word fluorescence comes from this stone. A thing that matches itself all the way through tends to shine when the right light is turned on it.

What it is carried for

  • Carried when the private life and the public word must be one thing.
  • Held for keeping a promise nobody is checking.