Mineralogical Magazine's Image Gallery

Angastonite: CaMgAl2(PO4)2(OH)4?7H2O

Comments: SEM image of platy, striated crystals of angastonite.
Location: Angaston, South Australia. Scale: Unknown.
© Mineralogical Magazine

Ardaite: Pb19Sb13S35Cl7

Comments: B&W image of 1. Ardaite; 2. Chlorine-containing robinsonite; 3. Nadorite; 4. Anglesite; 5. Galena.
Location: Madjarovo polymetallic ore deposit, Bulgaria. (MinMag, v 46:340). Scale: Magnification 120 x.
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Arsenoflorencite-(Ce): (Ce,La)Al3(AsO4)2(OH)6

Comments: SEM image of euhedral crystal of arsenoflorencite-(Ce). (MinMag, v51:605).
Location: Stream-sediment sample taken on the Kimba 1:250000 mapsheet on the Eyre Peninsula in South Australia. Scale: See Image.
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Aurivilliusite: Hg+Hg++OI

Comments: Dark reddish brown aurivilliusite-bearing ‘splattered’ patch on quartz.
Location: Clear Creek claim, San Benito County, California, USA. Scale: See Image.
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Aurostibite: AuSb2  
Criddleite: TlAg2Au3Sb10S10

Comments: B&W polished section image of criddleite (grey) surrounding and penetrating aurostibite (white) within quartz gangue. (MinMag, v52:691).
Location: Hemlo gold deposit, Hemlo, Ontario, Canada. Scale: See Image.
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Barstowite: Pb4(CO3)Cl6·(H2O)

Comments: SEM images of irregular prismatic barstowite with phosgenite. (MinMag, v55:378).
Location: Lead-antimony vein at the southwestern end of Bounds Cliff, St Endellion, Cornwall, UK. Scale: Scale bar left 400 µm right 100 µm.
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Benleonardite: Ag8(Sb,As)Te2S3

Comments: B&W polished section image of a bladed and an irregular mass of benleonardite (b) intergrown with hessite (h). (MinMag, v60:403).
Location: Gies and Mayflower epithermal gold-silver telluride deposits, Montana, USA. Scale: See Image.
© Mineralogical Magazine

Criddleite: TlAg2Au3Sb10S10  
Aurostibite: AuSb2

Comments: B&W polished section image of criddleite (grey) surrounding and penetrating aurostibite (white) within quartz gangue. (MinMag, v52:691).
Location: Hemlo gold deposit, Hemlo, Ontario, Canada. Scale: See Image.
© Mineralogical Magazine

Drugmanite: Pb2(Fe+++,Al)H(PO4)2(OH)2

Comments: SEM view of a typical drugrnanite crystal.
Location: Found in silicified karst deposits, Richelle, 15 km north of Liege, Belgium. Scale: Picture Size 9 µm.
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Feinglosite: Pb2(Zn,Fe)[(As,S)O4]2·(H2O)

Comments: Feinglositc in polished section: (a) PPL light and (b) XPL light. In (a) note the inclusions of goethite (white) in the grey feinglosite (the black areas are holes). In (b) note the white to gray clusters of feinglosite. Black areas are goethite.
Location: Lining a cavity in a sample of massive chalcocite from Tsumeb, Namibia. (MinMag, v61:405). Scale: Picture Width 1 mm.
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Ferrohogbomite-2N2S: (Fe++,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2

Comments: Photomicrograph of euhedral ferrohogbomite-2N2S grains (Hog) in magnetite (Mgt). (MinMag, v 67, p 1084).
Location: Eastern Ghats belt, Andhra Pradesh, India. Scale: See Image.
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Herbertsmithite: Cu3Zn(OH)6Cl2

Comments: Black and white image of dark green herbertsmithite crystals on pale buff matrix. (Mineralogical Magazine, 68:5310.
Location: Mina Los Tres Presidentes, Sierra Gorda, Chile.. Scale: See Image.
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Herzenbergite: SnS

Comments: B&W polished section images. (C) Herzenbergite (h) and columbite (cb), with remnants of primary cassiterite (c), replaced(?) by varlamoffite (v). (D) Replacement of cassiterite by herzenbergite with euhedral herzenbergite crystals and gangue (g).
Location: Dykes in three granite pegmatite fields in north-central Sweden. (MinMag, v57:388). Scale: Picture Width 0.4 mm.
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Insizwaite: Pt(Bi,Sb)2  
Niggliite: PtSn

Comments: B&W image of a polished section showing insizwaite grain (I) showing details of niggliite (N) inclusions and exsolved chalcopyrite (C) lamellae in the pentlandite (P). (MinMag, v38:299).
Location: Insizwa deposit, Waterfall Gorge, Pondoland and East Griqualand areas (Transkei), South Africa. Scale: See Image.
© Mineralogical Magazine

Isochalcopyrite: Cu8Fe9S16  
Isocubanite: CuFe2S3

Comments: SEM image of an aggregate of idiomorphic grains of isocubanite (formerly known as isochalcopyrite) associated with minor pyrite.
Location: Submarine sulphide deposits of the East Pacific Rise (EPR) and the Red Sea. Scale: See Image.
© Mineralogical Magazine

Isocubanite: CuFe2S3  
Isochalcopyrite: Cu8Fe9S16

Comments: SEM image of an aggregate of idiomorphic grains of isocubanite (formerly known as isochalcopyrite) associated with minor pyrite.
Location: Submarine sulphide deposits of the East Pacific Rise (EPR) and the Red Sea. Scale: See Image.
© Mineralogical Magazine

Juabite: (Ca,Fe++)Cu10(Te++++O3)4(As+++++O4)4(OH)2·4(H2O)

Comments: SEM image of a broken juabite platy aggregate which shows the perfect {OlO} cleavage. (MinMag, v61:139).
Location: Mine dumps of the Centennial Eureka mine, Tintic District, Juab County, Utah, USA. Scale: Scale Bar 60 µm.
© Mineralogical Magazine

Killalaite: 2Ca3Si2O7·(H2O)

Comments: B&W PPL image of killalaite crystals in a vein of calcite. MinMag v39:544.
Location: Thermally metamorphosed limestone near Inishcrone, along the eastern shore of Killala Bay, Co. Sligo, Ireland. Scale: Crystal Size 0.5 mm.
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Manganipiemontite-(Sr): CaSr(Mn+++,Fe+++)2Al[Si3O12](OH)

Comments: Thin-section of (100) twinned tweddillite blades (red-orange-magenta ) in a matrix of serandite-pectolite (white-grey-yellow). Crossed polarizers. (MinMag 66:144).
Location: Kalahari manganese fields (Republic of South Africa). Scale: Picture Size 1 mm.
© Mineralogical Magazine

Niggliite: PtSn  
Insizwaite: Pt(Bi,Sb)2

Comments: B&W image of a polished section showing insizwaite grain (I) showing details of niggliite (N) inclusions and exsolved chalcopyrite (C) lamellae in the pentlandite (P). (MinMag, v38:299).
Location: Insizwa deposit, Waterfall Gorge, Pondoland and East Griqualand areas (Transkei), South Africa. Scale: See Image.
© Mineralogical Magazine