Research output: Contribution to journal › Article › peer-review
Hydroxylherderite (Ca2Be2P2O8(OH)2) stability under extreme conditions (up to 750°C/100 GPa). / Gorelova, Liudmila ; Vereshchagin, Oleg ; Andrey, Aslandukov; Aslandukovа, Alena; Spiridonova, Dar'ya ; Krzhizhanovskaya, Maria ; Kasatkin, Anatoly ; Dubrovinsky, Leonid .
In: Journal of the American Ceramic Society, 03.12.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Hydroxylherderite (Ca2Be2P2O8(OH)2) stability under extreme conditions (up to 750°C/100 GPa)
AU - Gorelova, Liudmila
AU - Vereshchagin, Oleg
AU - Andrey, Aslandukov
AU - Aslandukovа, Alena
AU - Spiridonova, Dar'ya
AU - Krzhizhanovskaya, Maria
AU - Kasatkin, Anatoly
AU - Dubrovinsky, Leonid
PY - 2022/12/3
Y1 - 2022/12/3
N2 - Hydroxylherderite, Ca2Be2P2O8(OH)2, is among the most common beryllophosphates in nature and could play a substantial role in Be geochemical cycle. Hydroxylherderite P–T stability and crystal structure behavior were studied under extreme conditions (up to 750°C/100 GPa) using in situ single-crystal and powder X-ray diffraction and Raman spectroscopy. The mineral demonstrated high stability under high-pressure conditions (up to ∼100 GPa) without any phase transitions. Under high-temperature conditions, it was stable up to about 700°C, when it decomposed with the formation of fluorapatite Ca5(PO4)3F and hurlbutite CaBe2P2O8. The beryllophosphate member of the gadolinite supergroup is the most stable mineral (material) under high-pressure conditions, compared to aluminum-, boro- and beryllosilicates.
AB - Hydroxylherderite, Ca2Be2P2O8(OH)2, is among the most common beryllophosphates in nature and could play a substantial role in Be geochemical cycle. Hydroxylherderite P–T stability and crystal structure behavior were studied under extreme conditions (up to 750°C/100 GPa) using in situ single-crystal and powder X-ray diffraction and Raman spectroscopy. The mineral demonstrated high stability under high-pressure conditions (up to ∼100 GPa) without any phase transitions. Under high-temperature conditions, it was stable up to about 700°C, when it decomposed with the formation of fluorapatite Ca5(PO4)3F and hurlbutite CaBe2P2O8. The beryllophosphate member of the gadolinite supergroup is the most stable mineral (material) under high-pressure conditions, compared to aluminum-, boro- and beryllosilicates.
KW - crystal structure
KW - gadolinite
KW - herderite
KW - High-pressure
KW - high temperature
KW - hydroxylherderite
UR - https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/jace.18923
M3 - Article
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
ER -
ID: 101481789