| Yazarlar (5) |
Dr. Öğr. Üyesi İlkay KAYDU AKBUDAK
Ahi Evran Üniversitesi, Türkiye |
Doç. Dr. Zeynel BAŞIBÜYÜK
Ahi Evran Üniversitesi, Türkiye |
GÜRBÜZ MELTEM
Mersin Üniversitesi, Türkiye |
|
ÖZTÜFEKÇİ ÖNAL AYTEN
Munzur Üniversitesi, Türkiye |
|
İşler Fikret
|
| Özet |
| Yamadağ Volcanics which is one of the examples of the Late Miocene volcanism in Eastern Anatolia covers large areas within the boundaries of Arguvan county of Malatya. The gemstones, subject of this research range from a few centimeters to about 30-40 cm in size and are formed in the cavities of the basalts beonging to Yamadağ volcanics. These gemstones seem to have formed as veins extending in east-west direction and consist of opal (opal-CT) and chrysocolla. Opal formations have various colours such as white, brown, yellow and greenish, while chrysocolla formations are bluish-greenish in color. both opal and chrysocolla are of massive type and their fresh surfaces display waxy luster. Mineral paragenesis and formation conditions of gemstones and are determined by applying XRD, SEM, FT-IR techniques. ICP-MS technique is used for the determination of the geochemical compositions. The gemological characteristics are identified via cabochon and facet cut techniques by using diamond coating blade, sintered diamond abrasive discs and polishing machine. Opals are usually composed of tridymite minerals, also in some cases quartz and cristobalite minerals accompany the tridymite minerals. The EDX measurements reveal, enrichment of Fe and Al in opals, and of Cu in chrysocolla. The ICP-MS measurements, in chrysocollas reveal, enrichments in LIL elements such as Ba, Sr and in HFS elements such as U. Consequently, gemological studies show that the chrysocolla and opals in study area, which have waxy luster and massive structure, are suitable for utilization as a gemstone due to its color, hardness, durability, homogeneous distribution of color and processability. |
| Anahtar Kelimeler |
| Chrysocolla | Gemology | Gemstone | Malatya | Mineralogy-geochemistry | Opal |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi |
| Dergi ISSN | 1300-1884 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Exp, SCOPUS, Curation, Essential Science Indicators, Pdf2xml, Pdf2xml, Reference Master, Sophia, Web Of Science Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | Türkçe |
| Basım Tarihi | 03-2018 |
| Cilt No | 33 |
| Sayı | 1 |
| Sayfalar | 211 / 219 |
| Doi Numarası | 10.17341/gazimmfd.406793 |
| Makale Linki | http://dx.doi.org/10.17341/gazimmfd.406793 |
| Atıf Sayıları | |
| SCOPUS | 4 |
