Structure of magnesian calcite from sea urchins

S. J. Tsipursky, P R Buseck

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


Indicates that the calcite of sea urchin spines and skeletal plates forms in mosaic crystals. Both coherent and incoherent boundaries were observed between slightly misaligned crystallites. Small domains show an ordered superstructure. The most appropriate model has Ca:Mg=3.1 and alternating Ca layers and Ca and Mg layers along c. -from Authors

Original languageEnglish (US)
Pages (from-to)775-781
Number of pages7
JournalAmerican Mineralogist
Issue number7-8
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology


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