zadovite

{{Infobox mineral

| name = Zadovite

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| category = Phosphate minerals

| formula = BaCa₆[(SiO₄)(PO₄)](PO₄)₂F

| IMAsymbol = Zad{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}

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| system = Trigonal

| class = Hexagonal scalenohedral ({{overline|3}}m)
H-M symbol: ({{overline|3}} 2m)

| symmetry = R{{overline|3}}m

| unit cell = a = 7.0966, c = 25.7284 [Å]; Z = 3

| color = Colorless

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| fracture = Irregular/uneven

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| luster = Vitreous

| streak = White

| diaphaneity = Transparent

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Zadovite is an extremely rare mineral with formula BaCa₆[(SiO₄)(PO₄)](PO₄)₂F. Together with its vanadium-analogue, aradite, zadovite occur in paralavas (type of pyrometamorphic rocks). Both minerals have structures similar to nabimusaite, and these three minerals occur in the Hatrurim Formation of Israel. Structure of all three minerals is related to that of hatrurite. Minerals combining barium, phosphorus and silicon together are scarce.Galuskin, E.V., Gfeller, F., Galuskina, I.O., Pakhomova, A., Armbruster, T., Vapnik, Y., Włodyka, R., Dzierżanowski, P., and Murashko, M., 2015. New minerals with a modular structure derived from hatrurite from the pyrometamorphic Hatrurim Complex. Part II. Zadovite, BaCa₆[(SiO₄)(PO₄)](PO₄)₂F and aradite, BaCa₆[(SiO₄)(VO₄)](VO₄)₂F, from paralavas of the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine 79(5), 1073-1087Galuskin, E.V., Gfeller, F., Armbruster, T., Galuskina, I.O., Vapnik, Y., Murashko, M., Włodyka, R., and Dzierżanowski, P., 2015. New minerals with a modular structure derived from hatrurite from the pyrometamorphic Hatrurim Complex. Part I. Nabimusaite, KCa₁₂(SiO₄)₄(SO₄)₂O₂F, from larnite rocks of Jabel Harmun, Palestinian Autonomy, Israel. Mineralogical Magazine 79(5), 1061-1072{{cite web|url=http://www.mindat.org/min-43920.html |title=Aradite: Aradite mineral information and data |website=Mindat.org |access-date=2016-03-02}}