@misc{indiciae30fb8f3a756c,
  title = {Echinoderm calcite: single crystal or polycrystalline aggregate.},
  author = {K M Towe},
  year = {1967},
  doi = {10.1126/science.157.3792.1048},
  url = {https://pubmed.ncbi.nlm.nih.gov/6036232/},
  note = {Source identifier: 6036232}
}