mindat.org's Photo Gallery

11E-LYGTourmaline A(D₃)G₆(Si₆O₁₈)(BO₃)₃X₃Z , Rutile TiO₂

Cavagnöö Glacier, Robièi, Bavona Valley, Cevio, Vallemaggia, Ticino, Switzerland

Dimensions: 19 mm x 13 mm x 12 mm

Paolo Franchi collection and photo.

GFV-UEMHematite Fe₂O₃

Basalt quarry, Pauliberg, Kobersdorf, Oberpullendorf District, Burgenland, Austria

Field of View: 2.5 mm

in SI melt
peter neschen collection (107-09_016_1)

G82-4N5Copper Cu , Cerussite PbCO₃

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia

Dimensions: 65 mm x 50 mm x 35 mm

9NG-VE1Sphalerite ZnS

Jacob's Geode Mine, Hamilton, Hancock Co., Illinois, USA

Field of View: 4 cm

Obtained in trade from Dave Reese (Rock River Valley IL Rock Club) who found this geode. Also found on this geode is kaolinite and gypsum.

K75-T3QApophyllite, Celadonite K(Mg,Fe²⁺)Fe³⁺(Si₄O₁₀)(OH)₂

Shakur Quarry, Nashik District, Maharashtra, India

Dimensions: 6 cm x 5 cm x 2.6 cm

Ex. Bruce and Dale Wadleigh collection. Added to my apophyllite collection and Indian minerals collection in 2018.

1WX-2WCPyrite FeS₂ , Calcite CaCO₃

Montalieu-Vercieu Quarry, Montalieu-Vercieu, La Tour-du-Pin, Isère, Auvergne-Rhône-Alpes, France

Field of View: 2 mm
Largest Crystal Size: 0.28 mm

Group of pyrite crystals in/on calcite.

3LV-5U8Scheelite Ca(WO₄) , Quartz SiO₂

Pari, Kharmang District, Gilgit-Baltistan, Pakistan

Dimensions: 112 mm x 73 mm x 39 mm

Several pegmatitic scheelite crystals on a bed of needles of quartz.

Billy Creek State Wildlife Area from Ouray County Road 4B, on 10 July 2019

Billy Creek State Wildlife Area, Eldredge, Ouray Co., Colorado, USA

The extensive Mancos Shale bluffs at the Billy Creek State Wildlife Area have occasional exposures of fractured harder rock sills containing calcite crystals of varying quality. The slopes are steep here, the footing is loose, and on the day this picture was taken it was 95° F. in the shade. With some perseverance, however, decent specimens may occasionally be found.

Dan A. Polhemus photo, 10 July 2019.

XK9-9D5Scheelite Ca(WO₄) , Quartz SiO₂

Pari, Kharmang District, Gilgit-Baltistan, Pakistan

Dimensions: 28 mm x 28 mm x 25 mm
Largest Crystal Size: 28 mm

Isolated tetragonal scheelite crystal with quartz, from a pegmatitic genesis pocket, uncommon for the species, found in year 2007 in the Kharmang Valley, southeast of Skardu. Overall size: 28mm x 28mm x 25mm.

Q6G-QV2Whewellite Ca(C₂O₄)·H₂O , Calcite CaCO₃

Condorcet, Nyons, Drôme, Auvergne-Rhône-Alpes, France

Field of View: 22 mm

This specimen is a part of a nodule septarian found by Denis Beaudet and Roger Martin in 1979. This piece is very rich in whewellite xls (impossible to count them), all put on scalenohedral white calcite. Gift from Denis Beaudet.
Photo and collection : Jean-Luc Portes

4U3-2ACMountain Minerals International label Pari (Paari; Bari), Kharmang District, Gilgit-Baltistan, Pakistan

Pari, Kharmang District, Gilgit-Baltistan, Pakistan

Dimensions: 60 mm

Label from Mountain Minerals International.

2PC-455Acanthite Ag₂S , Polybasite [(Ag,Cu)₆(Sb,As)₂S₇][Ag₉CuS₄] , Pyrite FeS₂

San Juan de Rayas Mine, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico

Dimensions: 61 mm x 42 mm x 26 mm

Many cubic crystals to 5mm on polybasite covered by micro pyrite.
Paolo Franchi collection and photo.

EMM-58PBastnäsite-(Ce) Ce(CO₃)F

Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France

Field of View: 8 mm

Bastnaesite from the Trimouns Talc Mine. Image width: 8 mm
Collection: Wilfred Moorer.
Photo: Fred Kruijen.

NAG-HEWQuartz SiO₂ , Hematite Fe₂O₃

Hebei, China

Dimensions: 93 mm x 58 mm x 37 mm
Field of View: 45 mm
Largest Crystal Size: 20 mm

XDG-U8VApophyllite, Mordenite (Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O

Pune District, Maharashtra, India

Dimensions: 230 mm x 140 mm x 27 mm
Field of View: 30 mm
Largest Crystal Size: 17 mm

9LC-43NQuartz SiO₂

Tole, Wana, South Waziristan District, Khyber Pakhtunkhwa Province, Pakistan

Dimensions: 40 mm x 20 mm x 20 mm
Field of View: 25 mm
Largest Crystal Size: 20 mm

Faden quartz!

M17-MGELimonite

Grove Point, Cecilton, Cecil Co., Maryland, USA

Dimensions: 9.7 cm x 8.5 cm x 4.7 cm

Botryoidal limonite "bog iron" from the shore of Chesapeake Bay at Grove Point, Cecilton, Maryland, USA.

46L-UR7Olivenite Cu₂(AsO₄)(OH)

Penberthy Croft Mine, St Hilary, Cornwall, England, UK

Field of View: 1.25 mm

7QM-FRTPrehnite Ca₂Al₂Si₃O₁₀(OH)₂

Rémigny armenite occurrence, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada

Field of View: 6 cm

White band of prehnite (Fluorescent dull white in SW) with red specks of piemontite, minor white armenite, green clinozoisite, white albite (cleavages plus crystals in vug), tan wilsonite variety of muscovite partially replacing white albite. Fluorescent kaolinite and red-brown fibrous thulite variety of zoisite on the other side of the specimen. Collected by Gaston Pouliot, Pierre Trudel, Guy Valiquette, and Paul Samson. Obtained by gift from George Robinson 1984.

YQ6-0GXStilbite subgroup M_6-7[Al_8-9Si_27-28O₇₂]·nH₂O , Epidote {Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)

Arrondissement of Diakon, Bafoulabé Cercle, Kayes Region, Mali

Dimensions: 8.7 cm x 7 cm x 5.7 cm

As there's some disagreement as to whether it is Stilbite or Stellarite on the Epidote, I've categorized this as 'stilbite group.'