- B
-
- Banded
- Banding
- Basal
- Basal cleavage
- Basal pinicoid
- Basalt
- Base
- Basic
- Batholith
- Bead test
- Bed
- Bedding
- Bedrock
- Beta rays
- Birefringence
- Bipyramid
- Bipyramidal
- Bipyramidal hexagonal
- Bipyramidal hexagon
- Bituminous
- Bladed
- Blowpipe test
- Boiling point
- Bond
- Borates (group)
- Borax
- Botryoidal
- Boule
- Brass
- Brilliant (cut)
- Brilliant (luster)
- Brittle
- Bronze
- Brownspar