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bertrandite

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Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001086
EISBN: 978-1-62708-162-7
... While a number of beryllium-containing minerals have been identified, only beryl (3BeO-Al 2 O 3 -6SiO 2 ) and bertrandite (4BeO-2SiO 2 -H 2 O) have been commercially significant to date. Beryl occurs in isolated pockets in pegmatites and, with the possible exception of operations in the Soviet Union...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006058
EISBN: 978-1-62708-175-7
...) and 50% reflectivity of optical white light Up to 17 times more transparent to x-rays than aluminum Production of Powders Bertrandite ore (Be 4 Si 2 O 7 (OH) 2 ) and beryl ore (3BeO-Al 2 O 3 -6SiO 2 ) are mined in the state of Utah and international sources. The ore is decomposed and purified...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003052
EISBN: 978-1-62708-200-6
...) (formed by reacting B 2 O 3 and urea in nitrogen) High thermal conductivity High electrical resistivity High hardness Substrates in electronics Machining of ferrous metals BeO Beryllia powder from beryl or bertrandite ores High thermal conductivity High electrical resistivity Substrates...