- P
-
- Paleontology
- Paleontologist
- Paragenesis
- Paramagnetic
- Paramagnetism
- Paramorph
- Parting
- Pearl
- Pearly (luster)
- Pegmatite
- Pendant
- Penetration
- Penetration twinning
- Pentagonal dodecahedron
- Percussion figure
- Petrifaction
- Petrification
- Petrified
- Petrified wood
- Petrographer
- Petrography
- Petrographic microscope
- Petrology
- Petrologist
- pH
- Phantom growth
- Phenocryst
- Phosphates (group)
- Phosphorescence
- Phosphorescent
- Phyllosilicates (subgroup)
- Physicist
- Physics
- Piezoelectric
- Piezoelectricity
- Pinicoid
- Pinicoidal
- Pinicoidal Cleavage
- Pipe
- Pisolite
- Pisolitic
- Pit
- Pitchlike (luster)
- Pitchy (luster)
- Placer deposit
- Plagioclase twin
- Plane
- Plane of symmetry
- Planetoid
- Plate
- Plate-like
- Platy
- Playa
- Pleochroic
- Pleochroism
- Plug
- Plumose
- Plutonic rock
- Pocket
- Point
- Polished
- Polychromatic
- Polyhedron
- Polymorph
- Polymorphism
- Polymorphous
- Polusynthetic twinning
- Polysynthetic twins
- Porcelaineous
- Porous
- Porphyritic
- Porphyry
- Precious Stone
- Precipitating
- Precipitation
- Primary
- Primary mineral
- Prism
- Prismatic
- Prismatic cleavage
- Prospect
- Prospecting
- Prospector
- Proton
- Pseudo
- Pseudocube
- Pseudocubic
- Pseudohexagon
- Pseudohexagonal
- Pseudomorph
- Pseudomorphed
- Pseudomorphism
- Pt.
- Pure
- Pyncnometer
- Pyramidal
- Pyritohedral
- Pyritohedron
- Pyroelectric
- Pyroelectricity
- Pyrometallurgy
- Pyrosilicates
- Pyroxene
- Pyroxene group