Results 61 to 70 of about 914 (208)
Obsidian in the Caribbean islands? Mysterious Ceramic Age glass artefacts in the Lesser Antilles
Archaeometry, Volume 66, Issue 6, Page 1255-1279, December 2024.Abstract The Caribbean islands witnessed a population expansion of ceramic‐using horticulturalists during the Early Ceramic Age (ca. 500 BC to 750 AD) from the Orinoco Valley to Puerto Rico. We examined 18 lithic artefacts from Guadeloupe and Dominica initially thought to be obsidian, a material believed to be absent from those islands. We investigated
Arthur Leck +9 more
wiley +1 more source
Siglec‐1, an easy and contributory inflammation marker in rheumatology
Clinical &Translational Immunology, Volume 13, Issue 7, 2024.In this study, we found that Siglec‐1 expression on monocytes correlates with the interferon score. In our setting, Siglec‐1 expression can reveal interferon inflammation in rheumatological disorders and in infections, even with normal erythrocyte sedimentation rate or C‐reactive protein.
Valentina Boz +10 more
wiley +1 more source
, 2022 Nephrite is a high-valued gem material, whose geographical origin determination is a topic of interest to both consumers and producers since the geographic origin determines its price and reputation. In the present study, we suggest a two-step method for
Mingxing Yang, Yue Su
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ANALYSIS OF MINERALS IN CEMPAKA-MADU GEMSTONE FROM ACEH INDONESIA BY USING XRF
Jurnal Natural, 2018 . Cempaka-madu is a local name for one kind of gemstone from Aceh province in Indonesia. It is so attractive and its color is dark-orange. We have utilized X-Ray Florescent (XRF) to study these cempaka-madu gemstones from Aceh Tengah and Nagan Raya ...
Ismail ., Akmal Nizar, Mursal .
doaj +1 more source
The Green Spots in Nephrite—Grossularite
Yankuang ceshi, 2013 Recently, a variety of nephrite with emerald green spots appeared in the nephrite market. There is no report on the mineral composition and green spots for this type of nephrite. Under a higher magnification optical microscope, the complete crystal shape,
FENG Xiao-yan +3 more
doaj
Gemological Study of Black Nephrite from Dahua, Guangxi Province, China
CrystalsDahua in Guangxi is an important soft jade mining area in southern China. Despite this, research on the nephrite from this region, particularly on the coloring mechanism of black nephrite, remains limited.
Mingying Cui +4 more
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Mineralogical Characteristics of White Nephrite from Dikou, Fujian Province, Southeastern China
CrystalsNephrite is a significant jade resource, and systematic investigation of its deposits contributes to regional metallogenic synthesis and exploration targeting.
Shuo Ran, Yingxin Liu
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Nephrite Jade in West Pakistan
, 1963 Two pebbles of the nephrite variety of jade were found by the author in 1955 in the river bed of the Teri Toi in Kohat District of former North-West Frontier Province of West Pakistan; the positive identification of the compositions of the pebbles was ...
B. C. M. Butler
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International Journal of Applied Earth Observations and GeoinformationNephrite, as a rare jewelry with a long history, holds great economic value and cultural significance. The Eastern Kunlun Range possesses immense potential for nephrite resources controlled by tectonic evolution and magmatic activities during geological ...
Wenqing Ding +5 more
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GeosciencesSince prehistoric times, indigenous residents of southwest British Columbia, Canada, collected water-worn nephrite specimens from the gravel bars along the Fraser River, using the stone for the manufacture of tools that were widely traded with other ...
George E. Mustoe
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