1. Chiastolite; - so called from the tessellated appearance of a cross section 
2. A twin crystal

Derived forms: macles

• genus Babyrousa
• genus Baccharis
• genus Bacillus
• genus Bacteroides
• genus Baiomys
• genus Bairdiella
• genus Balaena
• genus Balaeniceps
• genus Balaenoptera
• genus Balanus
• genus Balistes
• genus Ballota
• genus Balsamorhiza
• genus Bambusa
• genus Bankia
• genus Banksia
• genus Baphia
• genus Baptisia
• genus Barbarea
• genus Barosaurus
• genus Bartle-Frere
• genus Bartramia
• genus Basiliscus
• genus Bassariscus
• genus Bassia