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
3
CL, EDS, 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
—
Villamanínite , Hauerite , Laurite , Gaotaiite , Aurostibite , Cattierite , Dzharkenite , Trogtalite , Fukuchilite , Krut'aite , Penroseite , Vaesite , Insizwaite , Geversite , Sperrylite , Pyrite , Erlichmanite
0
0
—
Group , Arsenide , Selenide , Sulphide , Telluride
Pyrochlore
(Sr,Na)2 Nb2 O6 (OH,F), (Ca,Na)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)
Pyrochlore, strontian , Pyrochlore , Cesiokenopyrochlore , Hydroxykenopyrochlore , Hydroxycalciopyrochlore , Hydropyrochlore , Hydroxyplumbopyrochlore , Oxycalciopyrochlore , Fluornatropyrochlore , Hydroxynatropyrochlore , Hydroxymanganopyrochlore , Hydrokenopyrochlore , Fluorcalciopyrochlore
0
0
—
Group , Hydroxide , Niobate
Pyrochlore (supergroup)
A2-m D2 X6-w Z1-n
—
Roméite (group) , Ralstonite (group) , Microlite (group) , Pyrochlore (group) , Coulsellite (group) , Betafite (group) , Elsmoreite (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