Protactinium Pa
—
—
16
0
—
Element
Proto-anthophyllite ☐Mg2 Mg5 Si8 O22 (OH)2
Anthophyllite root name group —
0
0
—
Mineral, Hydroxide , Silicate
Proto-ferro-anthophyllite ☐FeII 2 FeII 5 Si8 O22 (OH)2
Anthophyllite root name group —
0
0
—
Mineral, Hydroxide , Silicate
Proto-ferro-suenoite ☐MnII 2 FeII 5 Si8 O22 (OH)2
Suenoite root name group —
0
0
—
Mineral, Hydroxide , Silicate
Protoenstatite Mg2 Si2 O6
Orthopyroxene —
0
0
—
Mineral, Silicate
Pseudowollastonite CaSiO3
—
—
0
0
—
Mineral, Silicate
Pyrite FeS2
Pyrite (group) —
Open
Cubic crystals of pyrite (7.0 × 5.0 × 2.5 cm). Found from Huanzala mine, Huallanca, Bolognesi, Ancash, Peru
©
Photo by Ivar Leidus (via Wikimedia Commons), CC-BY-SA 4.0
3
2
CL, SXES
Mineral, Sulphide
Pyrite (group) A X 2 , A =Au,Co,Cu,Fe,Mn,Ni,Os,Pd,Pt,Ru; X =As,Bi,S,Sb,Se,Te—
Trogtalite , Aurostibite , Cattierite , Krut'aite , Erlichmanite , Fukuchilite , Gaotaiite , Hauerite , Laurite , Dzharkenite , Sperrylite , Geversite , Villamanínite , Insizwaite , Penroseite , Vaesite , Pyrite
0
0
—
Group , Arsenide , Selenide , Sulphide , Telluride
Pyrochlore (Sr,Na)2 Nb2 O6 (OH,F), (Ca,Na)2 Nb2 O6 (OH,F), (Na,Sr,Ca,Ce)2 Nb2 O6 (OH,F)
Pyrochlore (group) Calciopyrochlore
Open
Pyrochlore crystals (brown), from Vishnovogorsk, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia. 7.7 x 5.8 x 3.0 cm
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
5
0
—
Hydroxide , Niobate
Pyrochlore (group) A 2 Nb2 (O,OH)6 Z , A =Na,Ca,SnII ,Sr,PbII ,SbIII , Y, UIV ,H2 O,◻; Z =OH,F,O,H2 O,◻Pyrochlore (supergroup) Hydroxycalciopyrochlore , Fluornatropyrochlore , Pyrochlore , Pyrochlore, strontian , Hydropyrochlore , Pyrochlore, Sr, Ce , Hydroxyplumbopyrochlore , Hydrokenopyrochlore , Fluorcalciopyrochlore , Cesiokenopyrochlore , Hydroxymanganopyrochlore , Hydroxykenopyrochlore , Oxycalciopyrochlore , Hydroxynatropyrochlore
0
0
—
Group , Hydroxide , Niobate
Pyrochlore (supergroup) A2-m D2 X6-w Z1-n
—
Betafite (group) , Roméite (group) , Microlite (group) , Coulsellite (group) , Ralstonite (group) , Elsmoreite (group) , Pyrochlore (group)
0
0
—
Supergroup
Pyrochroite MnII (OH)2
Brucite (group) —
0
0
—
Mineral, Hydroxide
Pyrolusite MnO2
Rutile (group) —
0
0
—
Mineral, Simple oxide
Pyromorphite Pb5 (PO4 )3 Cl
Apatite (group) —
Open
©
Photo by Parent Géry, (via Wikimedia Commons), Public Domain
12
0
—
Mineral, Orthophosphate , Phosphate
Pyrope Mg3 Al2 (SiO4 )3
Garnet —
Open
Rhodolite garnets from the National Gem Collection
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
5
0
—
Mineral, Aluminosilicate
