F - Glossary

Face

Face centered

Face sharing

Facet

Faceted

Faceting

Facies (metamorphic)

Family of planes

Fast ray

Fault

Feldspar

Feldspar group

Feldspathic

Feldspathoid

Feldspathoid group

Felsic

Ferrian

Ferroginous

Ferromagnetic

Ferromagnetism

Ferrous

Fiber

Fibrous

Fibrous (cleavage)

Fibrous(crystals)

Filiform

Fire

Fishtail twin

Fissile

Fissility

Flaky

Flame test

Flash figure

Flat

Flaw

Flawless

Flexibility

Flexible

Flexible and elastic

Flexible but inelastic

Floater

Floater crystal

Flood basalt

Flow banding

Flowstone

Fluoresce

Fluorescence

Fluorescent

Fluorescent lamp

Fluorite twin

Fluvial

Fluvial deposit

Flux

Flux method

Fold

Foliated

Foliation

Fool’s gold

Form

Formula

Fossil

Fossiliferous

Fossilization

Fossilize

Fossilized

Fourling

Fractional crystallization

Fracture

Framework silicates

Freezing point

Frenkel defect

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