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Łukasz Kruszewski's Photo Gallery

LNR-H80Apachite Cu9Si10O29·11H2O

01424250016114363413672.jpg
Alforja Mine, Alforja, Baix Camp, Tarragona, Catalonia, Spain

Field of View: 3 mm

Greenish blue apachite with unknown additional secondary minerals from Alforja. Photo layer stacking technique used.
Copyright: © Łukasz Kruszewski 2021      Photo ID: 1119646     Uploaded by: Łukasz Kruszewski   View Count: 17   Approval status: Public galleries    Type: Photo - 1241 x 1024 pixels (1.3 Mpix)

2YX-1K9Barringtonite MgCO3·2H2O , Lansfordite MgCO3·5H2O

Multiple photos available
04404410016114317218921.jpg
Maricopa Co., Arizona, USA

Field of View: 1.2 mm

White crystals / crystal aggregates of barringtonite, with colourless lansfordite - most likely from a dead cactus, from Davis Mts., as referred from the second-only photo in Mindat. The specimen label says "barringtonite, lansfordite, Maricopa Co. This is a very good example of chemically simple compounds that are at once extremely (barringtonite) or very (lansfordite) rare. Photo layer stacking technique used.
Copyright: © Łukasz Kruszewski 2021      Photo ID: 1119615     Uploaded by: Łukasz Kruszewski   View Count: 11   Approval status: Public galleries    Type: Photo - 1194 x 1024 pixels (1.2 Mpix)

05M-D2DDawsonite NaAlCO3(OH)2

Multiple photos available
04287160016105639204555.jpg
Cisna, Gmina Cisna, Lesko County, Subcarpathian Voivodeship, Poland

Field of View: 1.2 mm

Dawsonite - first occurrence in Poland. Said to be analyzed. Obtained from Grzesiek Słowik - thanks!
Copyright: © Łukasz Kruszewski 2021      Photo ID: 1117516     Uploaded by: Łukasz Kruszewski   View Count: 15   Approval status: Public galleries    Type: Photo - 1227 x 1021 pixels (1.3 Mpix)

X11-ULJCowlesite CaAl2Si3O10·6H2O , Stilbite subgroup M6-7[Al8-9Si27-28O72]·nH2O

Multiple photos available
07715650016096724319267.jpg
Montresta, Oristano Province, Sardinia, Italy

Field of View: 3 mm

Tiny courless crystals of cowlesite intergrowing to form typical, white, rounded aggregates. Associated likely with yellowish stilbite-subgroup species (or, maybe, saponite?) in a vug of a volcanic rock. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114654     Uploaded by: Łukasz Kruszewski   View Count: 8   Approval status: Public galleries    Type: Photo - 1177 x 1024 pixels (1.2 Mpix)

6N0-6AWCoutinhoite ThxBa(1-2x)(UO2)2Si5O13·(H2O)1+y (0 < x < 0.5 and 0 < y < (2+x)) , Muscovite KAl2(AlSi3O10)(OH)2

00877760016096723228188.jpg
Urucum claim, Galiléia, Minas Gerais, Brazil

Field of View: 8 mm

Extremely rare, one-locality coutinhoite - variably hydrated thorium barium uranyl pentasilicate and a likely ThBa-analogue of weeksite - over cleavage planes of muscovite. The platy habit of at least the bottom aggregate is somewhat suspicious and I suspect an association of, e.g., uranocircite or metauranocircite-I. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114653     Uploaded by: Łukasz Kruszewski   View Count: 20   Approval status: Public galleries    Type: Photo - 1216 x 1024 pixels (1.2 Mpix)

G9X-J1NCleusonite (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 , Rutile TiO2 , Muscovite KAl2(AlSi3O10)(OH)2

Multiple photos available
04450630016096716703165.jpg
Fibbia, Fontana, Airolo, Leventina, Ticino, Switzerland

Field of View: 1.2 mm

Nicely developed black crystal of cleusonite - lead (strontium) uranium(IV,VI) iron(II) (zinc) titanium(IV) (iron(III)) oxide hydroxide (unique combination of elements among the currently accepted mineral species) - with most likely epitaxially intergrown rutile, on muscovite (although the label says "biotite"). I suspect at least part of the matrix is not quartz, but a colourless plagioclase (?). Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114647     Uploaded by: Łukasz Kruszewski   View Count: 16   Approval status: Public galleries    Type: Photo - 1221 x 1023 pixels (1.2 Mpix)

VHN-8K4Chovanite Pb15-2xSb14+2xS36Ox (x ~ 0.2)

Multiple photos available
07664260016096716708121.jpg
Sant'Olga tunnel, Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy

Field of View: 1.2 mm

Nice laths of chovanite - one of very few antimony sulfosalts (or thioantimonates(III)) with oxide anion, shared only (as for now) with scainiite and pillaite. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114641     Uploaded by: Łukasz Kruszewski   View Count: 14   Approval status: Public galleries    Type: Photo - 1207 x 1024 pixels (1.2 Mpix)

PFH-9P1Calcioursilite Ca4(UO2)4(Si2O5)5(OH)6·15H2O , Uranophane Ca(UO2)2(SiO3OH)2•5H2O

09166850016096716706269.jpg
St Christoph Mine, Breitenbrunn, Breitenbrunn, Erzgebirgskreis, Saxony, Germany

Field of View: 5 mm

The mixture shown here is said (G. Färber specimen & analysis) to comprise more greenish calcioursilite, and more yellow uranophane. To be analyzed. If confirmed, it would make the St Christoph mine the third worldwide locality of the very rare species calcioursilite. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114638     Uploaded by: Łukasz Kruszewski   View Count: 6   Approval status: Public galleries    Type: Photo - 1237 x 1024 pixels (1.3 Mpix)

FDL-5Q3Amarantite Fe3+2(SO4)2O·7H2O , Chalcanthite CuSO4·5H2O , Eriochalcite CuCl2·2H2O

Multiple photos available
05062630016096695486656.jpg
Queténa Mine, Toki Cu deposit, Chuquicamata District, Calama, El Loa Province, Antofagasta, Chile

Field of View: 8 mm

Typical sprays of vivid orange-brown amarantite nicely contrasting with chalcanthite. Minor rare light green eriochalcite is also associated, though not clearly seen here. An interesting feature of amarantite is its separate oxide anion - a feature shared, e.g., with volaschioite. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114613     Uploaded by: Łukasz Kruszewski   View Count: 17   Approval status: Public galleries    Type: Photo - 1199 x 1024 pixels (1.2 Mpix)

DW7-KNNKaribibite Fe3+3(As3+O2)4(As3+2O5)(OH) , Löllingite FeAs2

Multiple photos available
01359110016096691038075.jpg
Oumlil Mine, Oumlil, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco

Field of View: 3 mm

Nice sprays of karibibite - iron(III) metaarsenate(III) diarsenate(III) with unique combination of arsenate anions - as sprays of needle/lath/fibrous crystals covering and veinlets cutting the ore and barren rock. I haven't detected any additional arsenates in its surroundings, yet. Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1114605     Uploaded by: Łukasz Kruszewski   View Count: 15   Approval status: Public galleries    Type: Photo - 1232 x 1024 pixels (1.3 Mpix)

AEF-FYHSwinefordite Li(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4·nH2O

09874140016029268061098.jpg
Foote Lithium Co. Mine, Kings Mountain Mining District, Cleveland Co., North Carolina, USA

Field of View: 8 mm

Smectite-group minerals - as typical clays - are usually compact, microcrystalline, and very ugly. This is not true for this speciment of a very rare group representative - the lithium-rich swinefordite. Its micaceous crystals are well-visible here. Photo layer composing/stacking technique.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099442     Uploaded by: Łukasz Kruszewski   View Count: 18   Approval status: Public galleries    Type: Photo - 1217 x 1024 pixels (1.2 Mpix)

L2D-TN9Holdenite (Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8 , Allactite Mn2+7(AsO4)2(OH)8 , Franklinite Zn2+Fe3+2O4

02357740016029268073499.jpg
Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA

Field of View: 4 mm

Pink, matrix-forming holdenite - a very rare manganese(II) zinc hydrous silicate orthoarsenate(V) - covered by orangish sprays of allactite (hydrous manganese(II) orthoarsenate(V)) and black franklinite. In a single (?) part of the specimen there is a bright orange, tiny speck - possibly another very rare mineral sharing its chemical combination with holdenite - kolicite (?). Willemite is also likely in the specimen, with less so true for kraisslite. Not sure about the identity of the rounded aggregates of black platy (?) microcrystals (left portion of the image). Photo layer composing/stacking technique.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099441     Uploaded by: Łukasz Kruszewski   View Count: 21   Approval status: Public galleries    Type: Photo - 1189 x 1024 pixels (1.2 Mpix)

VPC-5D2Fersmanite Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 , Rinkite-(Ce) (Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2

02356600016029263017383.jpg
Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Field of View: 8 mm

Typically high-lustre, glassy, brown fersmanite (an example of titanosilicate mineral), with somewhat "fibrous", beige rinkite-(Ce) ("lovchorrite" variety; possibly transitional to mosandrite-(Ce), "vudyavrite" variety) in a nepheline syenite. The specimen likely comes from the famous Labuntsov #1 vein in the lowermost portion of the Astrofilitovye Ushcheliye (Astrophyllite Gorge), at the southwestern slopes of the Eveslogchorr Mtn. (close to the A. U. - Vuonnemiok Valley junction). Photo layer composing/stacking technique.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099440     Uploaded by: Łukasz Kruszewski   View Count: 17   Approval status: Public galleries    Type: Photo - 1180 x 1012 pixels (1.2 Mpix)

5C9-H3ECuprocopiapite Cu2+Fe3+4(SO4)6(OH)2·20H2O , Chalcanthite CuSO4·5H2O

Multiple photos available
03597770016029258658651.jpg
Mejillones peninsula, Mejillones, Antofagasta Province, Antofagasta, Chile

Field of View: 1.2 mm

Small but very typical for the copiapite group, yellowish, platy microcrystals of the rare member, cuprocopiapite. The blue associate is chalcanthite. I am not sure about the identity of the orangish mineral (in terms of the locality, the label says: Morro Mejillones; I think the specimen comes from the site known as Barranca del Sulfato), but I assume it could be (para)butlerite, metavoltine or maybe jarosite (?). Photo layer composing/stacking technique.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099438     Uploaded by: Łukasz Kruszewski   View Count: 22   Approval status: Public galleries    Type: Photo - 1191 x 1023 pixels (1.2 Mpix)

F07-UT6Beryllite Be3(SiO4)(OH)2·H2O , Albite Na(AlSi3O8)

Multiple photos available
02904020016029255192500.jpg
Kvanefjeld, Ilímaussaq complex, Kujalleq, Greenland

Field of View: 2 mm

White net-forming microcrystals of beryllite, possibly surrounding somewhat rounded chkalovite. Photo layer composing/stacking technique.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099436     Uploaded by: Łukasz Kruszewski   View Count: 16   Approval status: Public galleries    Type: Photo - 1139 x 1020 pixels (1.2 Mpix)

PM6-6GYArsenuranospathite Al(UO2)2(AsO4)2F·20H2O , Schoepite (UO2)8O2(OH)12·12H2O

Multiple photos available
01023860016029256172809.jpg
Krunkelbach Valley Uranium deposit, Menzenschwand, St Blasien, Waldshut, Freiburg Region, Baden-Württemberg, Germany

Field of View: 8 mm

Large brownish-yellow tabular arsenuranospathite with likely minor yellow schoepite. The chemical combination of this aluminium uranyl arsenate mineral is second only to that in chistyakovaite. Not sure about the identity of the dark violet crystals covering arsenuranospathite - this colour, but not the habit, would fit to ianthinite (maybe, instead, this is covellite?). Photo layer composing/stacking technique used.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099434     Uploaded by: Łukasz Kruszewski   View Count: 17   Approval status: Public galleries    Type: Photo - 1204 x 1024 pixels (1.2 Mpix)

094-J7AMinguzzite K3Fe3+(C2O4)3·3H2O

03795720016029256173430.jpg
Vallone stope, Cape Calamita Mine, Capoliveri, Livorno Province, Tuscany, Italy

Field of View: 1.2 mm

Intergrown tiny crystals of the extremely rare representative of the oxalate minerals: minguzzite, a.k.a. potassium trioxalatoferrate(III) trihydrate. This is yet another Fe3+-bearing oxalate mineral after stepanovite. Both are much more rare from the otherwise Fe2+-bearing humboldtine.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099433     Uploaded by: Łukasz Kruszewski   View Count: 13   Approval status: Public galleries    Type: Photo - 1241 x 1024 pixels (1.3 Mpix)

8X2-VX3Middlebackite Cu2C2O4(OH)2 , Malachite Cu2(CO3)(OH)2

05967270016029256176907.jpg
Val Gardena Sandstone exposure near San Lugano pass, Carano, Ville di Fiemme, Trento Province, Trentino-Alto Adige, Italy

Field of View: 2 mm

Blue intergrown crystals of the very rare copper oxalate hydroxide, middlebackite, with very minor malachite. Both reside on a fragment of fossil wood derived from sandstone.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099432     Uploaded by: Łukasz Kruszewski   View Count: 14   Approval status: Public galleries    Type: Photo - 1225 x 1024 pixels (1.3 Mpix)

JK1-7LVVeszelyite (Cu,Zn)2Zn(PO4)(OH)3·2H2O , Kipushite (Cu,Zn)5Zn(PO4)2(OH)6·H2O , Hemimorphite Zn4Si2O7(OH)2·H2O

Multiple photos available
08172190016029256174072.jpg
Palabanda quarries, Mfouati, Mfouati District, Bouenza Department, Republic of the Congo

Field of View: 8 mm

Great-quality dark veszelyite with lighter-blue kipushite - two rare copper-zinc phosphates - with colourless hemimorphite. Photo layer composing/stacking technique. A new, just-reported find by Tom Praszkier and colleagues - thanks, Tom!
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1099430     Uploaded by: Łukasz Kruszewski   View Count: 57   Approval status: Public galleries    Type: Photo - 1201 x 1024 pixels (1.2 Mpix)

QAT-HFGHereroite [Pb32(O,☐)21](AsO4)2[(Si,As,V,Mo]O4)2Cl10 , Jacobsite Mn2+Fe3+2O4

06268290016005218713176.jpg
Kombat Mine, Kombat, Grootfontein, Otjozondjupa Region, Namibia

Field of View: 1.2 mm

Microscopic orange hereroite - super-complex and unique lead oxychloride/arsenate/silicate, most likely with very minor association of a bit similar, though borate-rich, vladkrivovichevite. I didn't analyze this specimen, but I suppose the whitish areas may also bear barysilite, while the black ones - some additional Mn species like manganite.
Copyright: © Łukasz Kruszewski 2020      Photo ID: 1094843     Uploaded by: Łukasz Kruszewski   View Count: 16   Approval status: Public galleries    Type: Photo - 1249 x 1020 pixels (1.3 Mpix)
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