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Minerals

6323 results

Mineral

Paulhlavaite

paulhlavaite

Formula
CaCuTe⁴⁺4O10
Paulingite-Ca Field of view: 2 mm Locality: Vinařice, Kladno District, Central Bohemian Region, Czech Republic (locality at mindat.org) Mineral

Paulingite-Ca

paulingite-Ca

Formula
(Ca,K,Na,Ba,☐)10 (Si, Al)42O84·34H2O
Paulingite-K Field of view: 0.4 mm Locality: Agua Amarga, Cabo de Gata volcanic complex, Níjar, Almería, Andalusia, Spain (locality at mindat.org) Mineral

Paulingite-K

paulingite-K

Formula
(K,Ca,Na,Ba, ☐)10(Si,Al)42O84·34H2O
Mineral

Paulišite

paulišite

Formula
Ca2Zn(CO3)3·2H2O
Paulkellerite Field of view: 35 mm Locality: Schneeberg, Erzgebirgskreis, Saxony, Germany Description: Type mineral specimen (holotype) of yellow-green paulkellerite from Schneeberg, Saxony, Germany. Specimen number 163777-00, photo provided by the U.S. National Museum of Natural History at the Smithsonian Institute. Taken by Ken Larsen. Mineral

Paulkellerite

paulkellerite

Formula
(BiO)2Fe³⁺(PO4)(OH)2
Mohs
4
Brown paulkerrite microcrystals associated to almost black bermanite from Arizona (7U7 Ranch, Bagdad Mine, Hillside, Yavapai County, Arizona, United States of America). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Paulkerrite

paulkerrite

Formula
[(H2O)K]Mg2(Fe³⁺2Ti)(PO4)4(OF)(H2O)10·4H2O
Small but outstanding specimen of the extremely rare mineral paulmooreite from the TL in Langban (Långban, Filipstad, Värmland County, Sweden), and the only non slag locality worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Paulmooreite

paulmooreite

Formula
Pb2[As2O5]
Mineral

Pauloabibite

pauloabibite

Formula
NaNbO3
Back-scattered electron images of zoned grains in the alloy core of sample M11843. Ti – native Ti; Mmi – maurogemmiite; and Prbs – paulrobinsonite. The vermicular symplectite is composed of wangxibinite (TiFe) and ‘osbornite’ (TiN) in roughly equal proportions. (a) This image was taken near where foils for transmission electron microscopic study were extracted (Fig. 1). (b) Modified from Fang et al., Reference Fang, Bai, Yang, Rong, Shi, Li, Xiong and Ma2013, figure 4) where numbered points refer to electron microprobe analyses of α-titanium and of ‘Ti-Fe-Si-Ni alloy’ (paulrobinsonite) reported by Fang et al., Reference Fang, Bai, Yang, Rong, Shi, Li, Xiong and Ma2013, table 3). Mineral

Paulrobinsonite

paulrobinsonite

Formula
Ti8Fe4O2
Mineral

Paulscherrerite

paulscherrerite

Formula
UO2(OH)2
Mineral

Pautovite

pautovite

Formula
CsFe2S3
Mineral

Pavlovskyite

pavlovskyite

Formula
Ca8(SiO4)2(Si3O10)
Colour
white
Metallic silvery crystal aggregates of the rare Ag-Bi sulphide mineral pavonite from a locality in New Mexico (Hachita, Grant County, New Mexico, United States of America). Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium. Mineral

Pavonite

pavonite

Formula
AgBi3S5
Silver grey paxite associated to bluish grey koutekite from Mohawk Mine, Mohawk, Keweenaw County, Michigan, United States of America. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Paxite

paxite

Formula
CuAs2
Mineral

Pašavaite

pašavaite

Formula
Pd3Pb2Te2
Pearceite-Tac Locality: Guanajuato, Mexico (Locality at mindat.org) Size: miniature, 4.5 x 3.6 x 2.2 cm Pearceite At 4.5 cm long, this is pronounced by those who know more than I to be the finest known example of this rare species from Mexico, and perhaps in the world (per Terry Wallace, Wendell Wilson, and others familiar with the collection, as printed in the Romero Book). It is a sharp, lustrous specimen with no damage that is thought to have been recovered prior to the 1940s. This specimen from the Dr Miguel Romero collection was on loan exhibition to the University of Arizona Museum for over a decade, until my purchase of this collection in 2008. It was on display in special cases at the museum, and has since been featured in the book "The Miguel Romero Collection of Mexico Minerals" which we sponsored as a special supplement book (published by the Mineralogical Record in December of 2008). Mineral

Pearceite

pearceite

Formula
Cu(Ag,Cu)6Ag9As2S11
Xls to 1/6 mm on edge. Via Arnaldo Brunetti (ex Gilles Haineualt). MOB coll. A pair of small, but sharp xls, showing the typical “peatite on the outside, ramikite on the inside” zoning. The background is very dark (altered) rhodochrosite/siderite in curved xls. The other major mineral present is analcime, but there is none in the photo. These xls are close to the resolution limit of my scope. From: Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada. Mineral

Peatite-(Y)

peatite-(Y)

Formula
Li4Na12(Y,Na,Ca,REE)12(PO4)12(CO3)4(F,OH)8
Pecoraite Locality: Culver-Baer Mine (Culver-Baer Quicksilver Mine; Buckman Mine), North Fork Little Sulphur Creek, Cloverdale, West Mayacmas Mining District, Sonoma County, California, USA Green aggregates of pecoraite, probably pseudomorph. Field of view 2 cm. Specimen and photo Leon Hupperichs. Mineral

Pecoraite

pecoraite

Formula
Ni3(Si2O5)(OH)4
Pectolite Locality: Millington Quarry (Morris County Crushed Stone County Quarry; Tilcon Quarry), Bernards Township, Somerset County, New Jersey, USA (Locality at mindat.org) Size: 9.6 x 5.9 x 2.9 cm. Pectolites are probably the most significant mineral specimens to come out of the Millington Quarry recently, and in fact are some of the best in the world for the species. They are distinctive for their gorgeous peachy-mauve color, and perfectly rounded forms. This is a shallow vug of these mammillary forms, and you can see around the periphery how they are formed from thousands of densely-packed radial acicular crystals. Mineral

Pectolite

pectolite

Formula
NaCa2Si3O8(OH)
White massive specimen of the rare phosphate mineral peisleyite from the type and only known locality worldwide: Toms Phosphate Quarry, Kapunda, South Australia, Australia. Mineral

Peisleyite

peisleyite

Formula
Na2Al9[(P,S)O4]8(OH)6·20H2O
Black silvery acicular crystals of the rare PbCuBi sulphide pekoite from a little known locality (Germania Consolidated Mine, Turtle Lake, Stevens County, Washington, United States of America) on a contrasting matrix. Mineral

Pekoite

pekoite

Formula
CuPbBi11S18
Mineral

Pekovite

pekovite

Formula
SrB2Si2O8
Pellouxite is a very rare silver sulphosalt only known from 3 localities worldwide, being this one from the type and most classic locality in Italy (Buca Della Vena Mine, Apuan Alps, Lucca Province, Tuscany). It occurs in this specimen as metallic acicular and prismatic crystals with good contrast with the white matrix Mineral

Pellouxite

pellouxite

Formula
(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6
Yellow orange crystal aggregates of the very rare mineral pellyite from California (Rush Creek, Fresno County, California, United States of America). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Pellyite

pellyite

Formula
Ba2Ca(Fe,Mg)2Si6O17