On some remarkably developed calcite crystals
نویسندگان
چکیده
منابع مشابه
Anisotropic surface coupling while sliding on dolomite and calcite crystals
Carlos M. Pina,1 Rodolfo Miranda,2,3 and Enrico Gnecco2 1Department of Crystallography and Mineralogy, Complutense University of Madrid, E-28040 Madrid, Spain 2Instituto Madrileño de Estudios Avanzados, IMDEA Nanociencia, Campus Universitario de Cantoblanco, E-28049 Madrid, Spain 3Departamento de Fı́sica de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain (...
متن کاملInteractions of Various Skeletal Intracrystalline Components with Calcite Crystals
The calcitic skeletal elements of many organisms contain small amounts of proteins and glycoproteins which are incorporated within single crystals of calcite. Extraction and partial purification of the intracrystalline macromolecules allowed the identification of their interactions with synthetic calcite crystals. Specific interactions were inferred from induced morphological modifications asso...
متن کاملFormation of rod-shaped calcite crystals by microemulsion-based synthesis.
Novel rod-shaped calcite crystals are formed by precipitation from cetyltrimethylammonium bromide (CTAB)/1-pentanol/cyclohexane microemulsions containing calcium chloride and ammonium carbonate. The calcium carbonate initially precipitates as hexagon-shaped vaterite crystals. The vaterite crystals transform to unusual rod-shaped calcite crystals over several days. The rod-shaped calcite crystal...
متن کاملHeterogeneous distribution of dye-labelled biomineralizaiton proteins in calcite crystals.
Biominerals are highly ordered crystals mediated by organic matters especially proteins in organisms. However, how specific proteins are distributed inside biominerals are not well understood. In the present study, we use fluorescein isothiocyanate (FITC) to label extracted proteins from the shells of bivalve Pinctada fucata. By confocal laser scanning microscopy (CLSM), we observe a heterogene...
متن کاملWell-defined star-shaped calcite crystals formed in agarose gels.
Single crystals of calcite exhibiting a morphology of well-defined 8-armed stars, which evolved from original rhombohedral calcite crystals with their 8 points extending radially into eight arms, were produced by crystallization of CaCO3 in agarose gels.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Science
سال: 1891
ISSN: 0002-9599
DOI: 10.2475/ajs.s3-41.241.61