Two species, one repeating pattern

World 4: Salt, diamond and layered carbon is part of PRO

The first world of Crystal Lab is free. PRO opens the other 24 lessons in 8 worlds — simulations, quizzes and all.

• 🔒 A tetrahedron of neighbours
• 🔒 Three bonds in a sheet
• 🔒 Build a crystal by translation
• 🔒 A cell in wavevector space
• 🔒 Large cells, small reciprocal scales

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly