Results 91 to 100 of about 949 (188)
"Hopovo" gemstone occurrence (Fruška gora) [PDF]
Tehnika, 2020 This study presents geological, mineralogical, and gemological characteristics of gemstone deposit (silica and carbonate minerals) that occur in Mesozoic Fruška gora ultramafites in the vicinity of Hopovo Monastery.
Miladinović Zoran Ž.
doaj
Instrument and method for X-ray diffraction, fluorescence, and crystal texture analysis without sample preparation [PDF]
, 2010 An X-ray diffraction and X-ray fluorescence instrument for analyzing samples having no sample preparation includes a X-ray source configured to output a collimated X-ray beam comprising a continuum spectrum of X-rays to a predetermined coordinate and a ...
Arzoumanian, Zaven +2 more
core +1 more source
Известия высших учебных заведений: Геология и разведка, 2019 For the first time, data on the mineral composition and gemological characteristics of the jewelry-ornamental ammonites of the Republic of Adygea have been presented.
D. A. Petrochenkov
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Gemtelligence: Accelerating Gemstone classification with Deep Learning
, 2023 The value of luxury goods, particularly investment-grade gemstones, is greatly influenced by their origin and authenticity, sometimes resulting in differences worth millions of dollars. Traditionally, human experts have determined the origin and detected
Bendinelli, Tommaso +6 more
core
Origin of Color and Spectral Characteristics of Nanhong Agate from Northeast Yunnan, China
CrystalsNanhong agate has attracted public attention as the most distinctive gemstone in China. Owing to the limited data on Nanhong agates from a new production area in northeastern Yunnan, this paper presents the first data from gemological studies on these ...
Qiuyun Song +8 more
doaj +1 more source
Gemology and Chemical Aspects of Aquamarines from Quixeramobim, Brazil [PDF]
Since the end of the 20th century, it has become extremely common for countries with a significant exploration of gemstones to catalog and disclose the properties of their gems for various purposes.
de Araújo Paschoal, Carlos William +5 more
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O anel de noivado de diamante: O papel de um adorno na história da sociedade contemporânea [PDF]
The use of a diamond ring is currently considered a tradition in an engagement. Considering the set of values commensurate with this tradition, the present work seeks to identify the semiotics associated with diamonds in conjunction with engagement rings
Mior, Paulina Helena Zanluchi +3 more
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Yankuang ceshi, 2018 The Ningxia Helan Stone is one of the well-known stones that are used for making inkslab in China. The development and application of Helan Stone is becoming more and more widespread, and therefore, it is necessary to carry out a systematic study.
MENG Chang-feng, XUE Jun-hui
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Yeşil opalin gemolojik özellikleri = Gemological characteristics of green opal [PDF]
, 2016 Tez (Yüksek Lisans) -- İstanbul Ticaret Üniversitesi -- Kaynakça var.
openaire
STUDY ON FINANCIAL SUPPORT EFFICIENCY FOR COLLABORATIVE INNOVATION BY LAB-GROWN DIAMOND INDUSTRY CLUSTERS IN CHINA [PDF]
The use of jewelry and jade and the jade culture has a history of thousands of years in China. They were regarded as exclusive luxuries only available to nobles in ancient times.
Fang, Haijiang
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