Space group 4 · P2_1

sphenoidal · monoclinic

╌ Non-symmorphic · repeats by rotating and sliding

Number: 4
Symbol: P2_1
Full symbol: P 1 2_1 1
Schoenflies: P 1 1 2_1
Crystal system: monoclinic
Point group: 2 · sphenoidal
Lattice: P · Primitive
Symmorphic: No
Glide / screw: 2_1