shungite

shungite

[′shəŋ‚īt]
(geology)
A hard, black, amorphous, coallike material composed of more than 98% carbon.
References in periodicals archive ?
The spa treatment commences with a foot steam using ancient shungite stones that absorb negative energy, anxiety and depression.
Before bedtime, Nadine Abramcyk, a founder of Tenoverten, an all-natural luxury nail salon, puts her iPhone on aeroplane mode and covers it with a shungite crystal to reduce radiation.
According to the literature, shungite is a mineraloid consisting of more than 98% carbon (Mastarlez et al.
According to information given in Reznikov and Polekhovskii (2000), shungite has an RI of 1.
Among the topics are Bessel plasmons for near-field optical microscopy with nanoscale resolution, charge accumulation and edge state transport in graphene nanoribbons, experiment and modeling microwave absorption in pyrolytic carbon nanofilms, ion-selective detection with a glass nanopipette for living cells, electrokinetic properties of aluminum nanopowders in citric acid solution, and the effect of annealing on the shielding properties of shungite.
Fine Shungite powders--advanced fillers of polyfunctional action for elastomer composites," B.
Prospective use of Shungite filler in rubber and polymer composition," A.
Shungite is a highly carbonaceous metasedimentary rock similar in appearance to meta-anthracite and to solid bitumen.
Buseck and his collegues at Arizona State University in Tempe identified the first naturally occurring fullerenes in a rock from Russia called shungite (SN: 7/11/92, p.
So far, the Sheep Mountain fulgurite and the shungite - a coal-like sedimentary material - appear to have very different histories.
Buseck at Arizona State University in Tempe, has found 60-and 70-carbon fullerenes in the film that lines tiny cracks of a shiny black rock called shungite.
Using high-resolution transmission electron microscopy, Tsipursky first noted that some shungite images contained the same array of white circles and black centers that characterized micrographs of synthetic fullerene samples.