Szczegóły publikacji
Opis bibliograficzny
True colors of ”Dalmatian jasper” / Tomasz POWOLNY, Magdalena DUMAŃSKA-SŁOWIK // Gems & Gemology ; ISSN 0016-626X. — 2017 — vol. 53 no. 3, s. 325–331. — Bibliogr. s. 331
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 110483 |
|---|---|
| Data dodania do BaDAP | 2017-12-22 |
| DOI | 10.5741/GEMS.53.3.325 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Gems & Gemology |
Abstract
“Dalmatian jasper,” also known as “dalmatian stone,” is a popular decorative gemstone with a unique appearance resembling the spotted coloration of the Dalmatian dog breed. Our research revealed that this gemstone is a peralkaline rock of uncertain provenance. It consists predominantly of feldspars (mesoperthite), quartz, alkali amphiboles, and lesser amounts of hematite and epidote. Black spots found in the examined rock’s mass were recognized as arfvedsonite. The authors recommend the use of the term “dalmatian stone” rather than “dalmatian jasper,” since the material does not meet the gemological definition of jasper.
