Chalcedony, which has color of light blue-blue tones, is generally banded and sometimes has a kidney-like structure.
📌 3 Key Takeaways
🎯
Objective & Hypothesis:The chalcedony formations observed in the village of Nebiköy and its surroundings in Tokat province are found in Permian-Triassic metamorphic rocks as veins with a thickness a few mm to 10 cm.
📊
Key Findings & Data:The chalcedony formations observed in the village of Nebiköy and its surroundings in Tokat province are found in Permian-Triassic metamorphic rocks as veins with a thickness a few mm to 10 cm.
💡
Conclusion & Impact:Chalcedony, which has color of light blue-blue tones, is generally banded and sometimes has a kidney-like structure.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Gemoloji · Kalsedon · mineraloji
Abstract
The chalcedony formations observed in the village of Nebiköy and its surroundings in Tokat province are found in Permian-Triassic metamorphic rocks as veins with a thickness a few mm to 10 cm. Chalcedony, which has color of light blue-blue tones, is generally banded and sometimes has a kidney-like structure.
Özet
Tokat ili merkeze bağlı Nebi Köy ve çevresinde gözlenen kalsedon oluşumları Permiyen-Triyas yaşlı metamorfik kayaçlar içerisinde birkaç mm’den 10 cm kalınlığa kadar ulaşan damarlar halinde bulunmaktadır. Açık mavi-mavi tonlarında renge sahip olan kalsedonlar genellikle bantlı yapıda olup yer yer böbreğimsi yapı da sunmaktadır.
CANDAN, E. O., AKBUDAK, İ. K., BAŞIBÜYÜK, Z., EKİNCİOĞLU, G. (2022). Mineralogical-Petrographical and Gemological Investigation of Chalcedonies in Nebiköy, Tokat. Türkiye Jeoloji Bülteni, Cilt: 65 - Sayı: 3, 287–296. https://ajindex.com/articles/707978
Arık, F. ve Özen, Y. (2020). Tokat Yöresi Jasper Oluşumlarının Mineralojik-Petrografik, Jeokimyasal Özellikleri ve Süstaşı Olarak Kullanılabilirliği. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 9(1), 451-460.
Başıbüyük, Z. (2018). Mineralogical, geochemical, and gemological characteristics of silicic gemstone in Aydıncık (Yozgat-Turkey). Arabian Journal of Geosciences, 11(12), 1-11.
Çevik, N., Ayan, Z., Coşkun, E. ve Sayılı, İ. S. (2011). Belkavak Köyü (Yerköy-Yozgat) Civarındaki Kuvars ve Ametist Oluşumlarında Mikrotermometrik Özellikler. Türkiye Jeoloji Bülteni, 54(3), 123-139. https://dergipark.org.tr/tr/pub/tjb/issue/28158/299229
Flörke, O. W., Graetsch, H., Röller, K., Martin, B. & Wirth, R. (1991). Nomenclature of micro and non-crystalline silica minerals. Neues Jahrbuch für Mineralogie, Abhandlungen, 163, 19-42.
Flörke, O. W., Graetsch, H. & Miehe, G. (1983). Crystalstructure and Microstructure of Chalcedony. Fortschritte der Mineralogie, 61(1), 62-63.
Frondel, C. (1978). Characters of quartz fibers. American Mineralogist, 63, 17-27.
Frondel, C. (1982). Structural hydroxyl in chalcedony (type B quartz). American Mineralogist, 67, 1248-1257.
Gilg, H. A., Morteani, G., Kostitsyn, Y., Preinfalk, C., Gatter, I. & Strieder, A. J. (2003). Genesis of amethyst geodes in basaltic rocks of the Serra Geral Formation (Ametista do Sul, Rio Grande do Sul, Brasil): a fluid inclusion, REE, oxygen, carbon, and Sr isotope study on basalt, quartz, and calcite. Mineralium Deposita, 38, 1009-1025.
Gislason, S. R., Heaney, P. J., Veblen, D. R. & Livi, K. J. T. (1993). The difference between the solubility of quartz and chalcedony: the cause?. Chemical Geology, 107, 363-366
Graetsch, H. (1994). Structural characteristics of opaline and microcrystalline silica minerals. Reviews in Mineralogy and Geochemistry, 29(1), 209-232.
Hatipoğlu, M. (2003). Güğü Köyü Ametist Kristallerinin Değerlendirilmesi (Dursunbey, Balıkesir, KB Türkiye) ve Yöresel Ekonomiye Katkısı. Afyon, Türkiye IV Mermer Sempozyumu (MERSEM'2003)
Bildiriler Kitabı. Hatipoğlu, M., Babalık, H. & Chamberlain, S. C. (2010). Gemstone Deposits in Turkey. Rocks & Minerals, 85(2), 124-133
İşler, F. (1995). Özel Mineraloji. Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi, Yayın no: 28, 89s, Adana. Kaydu Akbudak, İ., Başıbüyük,