The general formula of the pyrochlore-supergroup minerals is A 2 B 2 X 6 Y. The mineral
names are composed of two prefixes and one root name (identical to the name of the group) …

The influence of mole fraction and nature of the cations in positions [8] A and [6] B of the
pyrochlores containing Na+, Ca 2+, Cd 2+, U 4+, Nb 5+, Ta 5+, Ti 4+, Sb 5+, Zr 4+, V 3+, V …

Zircon derived from crustal rocks can survive dissolution into hot basalts during magma
hybridization and rock assimilation if it is shielded as an inclusion phase in early-formed …

The pyrochlore supergroup minerals (PSM) are typical secondary phases that replace (with
zirconolite–laachite) earlier Sc-Nb-rich baddeleyite under the influence of F-bearing …

Pyrochlore-group minerals are common accessory rare-metal bearing minerals in the calcite
and ankerite carbonatites of the Amba Dongar complex (India). Pyrochlore from the Amba …

The existing classification of pyrochlore group minerals is essentially based on the dominant
valence rule. However, coupled heterovalent-homovalent substitutions at the A-, B-, and Y …

Abstract A Microsoft® Visual Basic program, WinPclclas, has been developed to calculate
the chemical formulae of pyrochlore supergroup minerals (PSM) based on data obtained …

Abstract Hydroxynatropyrochlore,(Na, Сa, Ce) 2Nb2O6 (OH), is a new Na–Nb–OH-dominant
member of the pyrochlore supergroup from the Kovdor phoscorite–carbonatite pipe, Kola …

Unlike acid stimulation in sandstone and carbonate formations, acid stimulation of volcanic
formations is not well documented in the literature, and its effectiveness and applicability are …

The roméite-group is part of the pyrochlore-supergroup and comprises cubic oxides of
A2B2X6Y formula in which Sb5+ predominates in the B-site. The A and Y main occupants …