次石墨
參考資料

↑  Jehlička, J.; Rouzaud, J.-N., Parnell, John; Kucha, Henryk; Landais, P. , 编, , Bitumens in Ore Deposits, Special Publication of the Society for Geology Applied to Mineral Deposits (Berlin, Heidelberg: Springer), 1993: 53–60  [2023-12-17], ISBN 978-3-642-85806-2, doi:10.1007/978-3-642-85806-2_4 （英语）  含有連結內容需訂閱查看的頁面 (link)
1 2  Tiffany, Kaitlyn. . The Atlantic. 13 May 2020  [4 July 2020]. ISSN 1072-7825.
1 2  Koetsier, John. . Forbes.com. 28 May 2020  [27 May 2021]. Other recommendations from Glastonbury? People should use Shungite, a mineral which is said to have healing powers that one 'healing crystal' company says 'span the board from purity to protection'.
1 2  Bucci, Nino. . The Guardian. 30 October 2020  [27 May 2021]. Fernandez claims Facebook warned him his account would be restricted for posting misinformation to his page, which he also uses to promote cryptocurrency opportunities and sell shungite, a crystal which he claims prevents the effects of 5G.
1 2  Song, Victoria. . Gizmodo. 3 March 2021  [27 May 2021]. Real shungite is 98% carbon, and has trace amounts of fullerenes, a type of carbon molecule that supposedly blocks electromagnetic frequencies. These pieces of jewelry or ornaments often have a much lower percentage of carbon than advertised and even lower amounts of fullerenes. There isn't much scientific evidence backing these claims, and researching shungite primarily brings up New Age-y articles spewing quackery, with no citations to actual studies or research. The 5G stickers supposedly generate some kind of shield to protect you from 5G waves. Let us be clear: A sticker that claims to generate any type of radiation-blocking shield is pure science fiction.
1 2  McGowan, Michael. . The Guardian. 24 February 2021  [27 May 2021]. [Fernandez] flits between long screeds about vaccinations and claims that Covid-19 is a hoax to selling products that he claims protect users from electromagnetic fields that conspiracy theorists believe are emitted by 5G towers. A shungite pyramid crystal will protect a radius of 'approximately 6-7 metres', his website claims.
1 2 3  Mindat.org. .   [3 July 2012].
1 2  Easthaugh, N.; Walsh V.; Chaplin T.; Siddall R. . Routledge. 2008: 345  [2 July 2012]. ISBN 9780750689809.
↑  Efremova, S.V. . Russian Journal of Applied Chemistry. 2006, 79 (3): 397–402  [11 September 2020]. S2CID 92934431. doi:10.1134/s1070427206030128.
1 2 3 4 5 6  Melezhik, V.A.; Filippov M.M.; Romashkin A.E. . Ore Geology Reviews (Elsevier). 2004, 24 (1–2): 135–154. Bibcode:2004OGRv...24..135M. doi:10.1016/j.oregeorev.2003.08.003.
↑  Mastarlez, M.; Glikson M.; Stankiewicz B.A.; Volkova I.B.; Bustin R.M. . Glikson M. & Mastarlez M.  (编). . Springer. 2000: 102–116  [7 July 2012]. ISBN 9780412733307.
↑  Golubev, Y.A.; Antonets, I.V. . Nanomaterials. 2022, 12 (21): 3797. PMC 9657770 . PMID 36364573. doi:10.3390/nano12213797 .
↑  Sajo, Ma Easter Joy; Kim, Cheol-Su; Kim, Soo-Ki; Shim, Kwang Yong; Kang, Tae-Young; Lee, Kyu-Jae. . Oxidative Medicine and Cellular Longevity. 2017-08-13, 2017: e7340143. ISSN 1942-0900. PMC 5574306 . PMID 28894510. doi:10.1155/2017/7340143 .
↑  Volfson, IF; Farrakhov EG; Pronin AP; Beiseyev OB; Beiseyev AO;  et al. . Selinus O.; Finkelman R.B.; Centeno J.A.  (编). . Springer. 2011: 223  [7 July 2012]. ISBN 9789048134298.
↑  Sajo, Ma. Easter Joy; Kim, Cheol-Su; Kim, Soo-Ki; Shim, Kwang Yong; Kang, Tae-Young; Lee, Kyu-Jae. . Oxidative Medicine and Cellular Longevity. 2017, 2017: 1–11. ISSN 1942-0900. PMC 5574306 . PMID 28894510. doi:10.1155/2017/7340143 .
↑  Reznikov, V.A.; PolekhovskiÏ.  (PDF). Technical Physics Letters. 8. 6 March 2000, 26 (2000): 689–693  [9 January 2013]. Bibcode:2000TePhL..26..689R. S2CID 51999111. doi:10.1134/1.1307814.
↑  Jurgelane, Inga; Locs, Janis. . Journal of Water and Health. 2020-11-25, 19 (1): 89–96. ISSN 1477-8920. doi:10.2166/wh.2020.139 .
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：各地 :  捷克 
非洲中部加蓬Franceville盆地的叠層石中由次石墨構成的深色地層