… BeO 5 polyhedra are currently known only in hurlbutite described in this work, and PO 5
ones have also been obtained in a high-pressure modification of TiPO 4 (Bykov et al., 2016). …

… Other less common phosphates that occur at the locality include hurlbutite, tiny beryl-lonite
crystals, small twinned crystals of amblygonite and brazilianite as small single crystals and as …

… CaB 2 Si 2 O 8 , and hurlbutite, CaBe 2 P 2 O 8 32 , but the ordering scheme of tetrahedral
cations is different. In paracelsian and hurlbutite, chemically distinct tetrahedral cations are in …

… These structures are compared in detail with hurlbutite (CaBe 2 P 2 O 8 ), another
paracelsian-type structure, and with danburite (CaB 2 Si 2 O 8 ) whose T 3+ , T 4+ ordering is …

… CaBe 2 P 2 O 8 and SrBe 2 P 2 O 8 are isostructural with the minerals hurlbutite and …
temperature and pH; the results show that synthetic hurlbutite can crystallize in acidic as well as in …

… hurlbutite-type structure. It has a monoclinic structure (space group ) with , , , , and . Zinc
atoms and phosphorus tetrahedra build up a three-dimensional network isotypic to the hurlbutite-…

… • Hydrothermal synthesis experiments were performed, showing that the hurlbutite-type
structure was extremely stable. This structure is topologically related to the feldspar structure. …

… Under the very high P 2 O 5 , low F 2 O (sub -1) conditions characteristic of the late stages
of certain pegmatites, hurlbutite, CaBe 2 (PO 4 ) 2 , becomes stable, whereas under high …

… Electron microprobe results show a high enrichment of Sr in hurlbutite and different contents
of SrO in different types of hurlbutite (Table 3). The discrete hurlbutite crystals from zone I …