Crystal Encyclopedia
Explore the crystal archive.
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By Intention
Faden Quartz
The Healer of Broken Lines
You have been carrying an old fracture longer than anyone realizes. Faden quartz heals itself with a white thread running through the crystal, a seam made visible rather than erased. Repair can become the strongest line in the room.
Fenster Quartz
The Window Crystal
You need a window where everything has felt opaque. Fenster quartz grows with etched skeletal openings, architecture partially dissolved so you can see farther in. Absence can become access.

Fire Agate
The Inner Flame
Your intensity has learned to stay beneath the surface for protection. Fire agate hides iridescent color under a brown chalcedony crust, revealing it only when the outer layer is carefully removed. The color survived by staying underneath.
Fire Opal
The Liquid Fire
You carry warmth that changes the temperature without announcing itself. Fire opal holds orange to red inside an amorphous silica body with no crystal structure at all, color that exists without the usual mineral scaffolding. Presence does not always need a framework.

Fire Quartz
The Hematite Flame Within
The clarity you had has become stained by something you cannot separate out. Fire quartz carries red hematite drifting through transparent quartz, iron oxide suspended in silica like a feeling that will not settle. Agitation inside clarity is still a form of signal.

Flint Chert
The First Spark
You are softer than the world deserves and sharper than it expects. Flint is dense microcrystalline silica that breaks to an edge and throws sparks when struck. Protection sometimes begins with remembering you can strike back.

Fluorite
The Genius Stone
Your thinking is sound at the center but keeps fragmenting at the edges. Fluorite is calcium fluoride in perfect cubic crystals that cleave along four planes simultaneously. Structure can be elegant and still fracture in predictable ways.

Fossil Fish
The Ancient Swimmer
You are trying to keep faith with something already gone. Fossil fish preserve a body in limestone long after muscle and movement are over. Memory can hold a form longer than life itself.

Fuchsite
The Healer Who Heals the Healer
Your tenderness needs a surface that does not absorb it entirely. Fuchsite is chromium-rich muscovite mica, green and reflective in thin sheets that give back light instead of holding all of it. Care gets easier when it can see itself.
Fulgurite
The Lightning's Fingerprint
The change happened too fast for you to track it and now you are trying to understand the shape left behind. Fulgurite forms when lightning strikes sand and fuses silica into glass in under a second. One second. Glass where sand was.