MINERAL COMPOSITION AND STRUCTURAL FEATURES OF JEWELER AMMONITES FROM KOSTROMA REGION
Detailed mineralogical examination of ammonites of jewelry quality has been carried out by means of radiographical, X-ray microanalyses and electronic microscopy. The ammonites consist mainly of calcite, apatite and some cells are constituted of phosphorite. The walls and shell’s septums consist of...
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| Format: | Article |
| Language: | Russian |
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Sergo Ordzhonikidze Russian State University for Geological Prospecting
2017-04-01
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| Series: | Известия высших учебных заведений: Геология и разведка |
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| Online Access: | https://geology.mgri-rggru.ru/jour/article/view/213 |