Results 81 to 90 of about 2,999 (192)

Towards a detailed comprehension of the inertisation processes of amphibole asbestos. In situ high-temperature behaviour of fibrous tremolite [PDF]

open access: yes, 2020
Thermal behaviour of fibrous tremolite from Maryland, USA has been investigated in situ up to breakdown temperature. Tremolite can be found both as primary constituent and as contaminant in Asbestos Containing Materials (ACMs).
Ballirano P., Pacella A.
core   +1 more source

Dimensional distribution control of elongate mineral particles for their use in biological assays

open access: yesMethodsX, 2020
The aim of the present method is to reduce the dimensional variability of asbestos, elongate mineral particles, and other asbestiform minerals for use in biological assays.
Ruggero Vigliaturo   +3 more
doaj   +1 more source

Coesite Discovery in Eclogites Confirms UHP Metamorphism in the Orlica‐Śnieżnik Dome (SW Poland)

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 3, Page 200-225, April 2026.
ABSTRACT Eclogite lenses are exposed within the orthogneiss‐dominated core of the Orlica‐Śnieżnik Dome in the Sudetes, which forms the northeastern margin of the Bohemian Massif (Variscan Belt of Central Europe). The presence of coesite inclusions in garnet and omphacite confirms that these eclogites underwent ultrahigh‐pressure metamorphism.
Małgorzata Nowak   +4 more
wiley   +1 more source

Note on rock-forming minerals in the Joetsu district, Niigata Prefecture, Japan. (13) Tremolite-actinolite from the Kotaki-Omi district. [PDF]

open access: yes, 1998
Actinolite-tremolite series occur in the contact between crystalline schists and serpentinite, and xenolith in serpentinite, Hisui-kyo (jadeite valley), Omi, Niigata Prefecture. Tremolite coexists with serpentine, chlorite and Cr-muscovite.
Oba, Takanobu
core  

The Green Spots in Nephrite—Grossularite

open access: yesYankuang 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  

Geochemical Characteristics and Genetic Types of Gobi Nephrite in Ruoqiang—Qiemo, Xinjiang

open access: yesYankuang ceshi, 2019
BACKGROUND The Hetian nephrite belt is the longest nephrite belt in the world at 1300km. In addition to the traditional primary and placer nephrite, there is widespread Gobi nephrite in the Gobi desert of the Quoqiang district in Xinjiang.
LIU Xi-feng, JIA Yu-heng, LIU Yan
doaj   +1 more source

When detection and quantification of mineral fibres in natural raw materials are at their limit – the case of a clay from the Gomsiqe–Puka mining area (Albania) [PDF]

open access: yesEuropean Journal of Mineralogy
In today's global market, the movement of raw materials and goods in the free global market can lead to unintended consequences. One significant concern is the potential presence of contaminants and carcinogens, particularly when products originate from ...
A. F. Gualtieri   +12 more
doaj   +1 more source

XII. On the Tremolite of Cornwall. [PDF]

open access: yesTransactions of the Geological Society of London
I do not know whether some observations upon a fossil of tlie Tremolite species, which I discovered some time since in the county of Cornwall, may be worthy the attention of the Geological Society. I was induced to record them for the following reasons. I was not aware that tremolite had ever been noticed before in our western counties.
openaire   +2 more sources

Effect of surface dissolution by oxalic acid on flotation behavior of minerals

open access: yesJournal of Materials Research and Technology, 2019
The surface dissolution pretreatment using oxalic acid as an organic agent was applied for modifying the surface properties of minerals and improving the selectivity of ilmenite flotation from its usual accompanied gangue minerals such as olivine ...
Omid Salmani Nuri   +2 more
doaj   +1 more source

Geochemical, mineralogical, and geological investigation of potential gemstone occurrences with special emphasis on emerald mineralization in Saba Boru locality, Oromia region, Southern Ethiopia

open access: yesResults in Earth Sciences
The present study area is located in Saba Boru locality, Oromia Region, Southern Ethiopia. The study presents geological, geochemical, and mineralogical data collected from stream sediments and major rock types, with whole-rock samples analyzed through ...
Mustefa Seyid, Rajendran Gangadharan
doaj   +1 more source

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