Abstract
Highlighted by popular belief, the eye of Saint-Lucia is a biomineral, which is of undoubted gemological interest by its nature and through its use. As gastropod operculum of the species Bolma rugosa, its name is not protected and may have been used for other gastropod species. Calcareous opercula are showcased in jewelry on both their outer and inner sides. The latter features a logarithmic spiral pattern that can be found on opercula of various Turbininae species, and whose opening parameter seems constant for a given species.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
