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Check out the Blue Fluorite with Calcite, Quartz Crystals on Dolomite, Calcite Crystal, Quartz Epimorphs after Anhydrite, Quartz var. Amethyst, Fluorite Crystal Cluster, Fluorite Crystals with Barite & Quartz, Vesuvianite, Pyrite, Quartz with Calcite on Pyrite, Celestite Crystals, Galena & Marcasite, Apatite Crystals with Pyrite & Calcite, Marcasite with Dolomite, Quartz Crystal Cluster, Dioptase, Pyrite with Sphalerite & Quartz, Apatite Crystals on Quartz, Calcite Rosettes with Siderite, Siderite Crystal with Barite, Chalcopyrite on Sphalerite with Manganoan Calcite & Quartz, Green Quartz on Andradite Garnet, Hübnerite on Quartz Crystal Cluster and Galena with Quartz mineral specimens on this page.    
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Very aesthetic specimen of gemmy green Apatite crystals (to 1.5x1.25x0.5 cm) with dark centers on a matrix with Pyrite and Calcite. No damage.
An excellent brassy Marcasite specimen with "coxcomb" crystal form on lustrous, white Dolomite. In fine condition.
Transparent, light green Fluorite crystals, to 2x1.5 cm, with white
Barite crystals and fine Quartz on matrix. In fine condition.
A super glassy cluster of Quartz crystals in excellent condition.
A very nice Tsumeb Mine Dioptase specimen with gemmy crystals to 0.5cm on Dioptase matrix.
A very nice combination specimen of golden Pyrite crystals with Quartz on Sphalerite. In very good condition.
Lovely, pale purple Apatite crystals on a terminated Quartz crystal with accompaning Muscovite.
Lustrous rosettes of Calcite crystals to 3x3 cm on Siderite. The Romanian mines are now closed and fine specimens will only increase in value.
Berbes Fluorites on Barite are hard to find these days and the location is no longer producing. This is a pretty good one for the price. The purple Fluorite crystals are up to 3x3 cm.
A single Siderite crystal measuring 4x3x2.5 cm with five other minerals, including Apatite. Representative of the complex combination mineral specimens from the Panasqueira mines.
Stunning specimen of Manganoan Calcite crystals (fluorescent) with Chalcopyrite and Quartz on Sphalerite from the now defunct Boldut Mine.
Click here for information on Marcasite.
Aesthetic cluster of lustrous dark green Quartz on a substrate of Andradite Garnet. The green color is due to inclusions of Actinolite.
Stunning cluster of glassy Quartz crystals with Hübnerite (1.5x1.5 cm) that has partially grown around a single quartz crystal in the center
Lustrous, etched Galena crystals with a bluish tinge on Quartz.
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Edward David
Apatite Crystals with Pyrite and Calcite
Panasqueira Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal
9 x 5.5 x 3.5 cm
Ex-Jorge Diaz Asenjo Collection
Marcasite with Dolomite (Excellent)
Panasqueria Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal
12 x 11 x 7 cm
Ex-Jorge Diaz Asenjo Collection
Fluorite Crystals with Barite on Matrix
Xianghualin Mine, Linwu, Chenzhou Prefecture, Hunan Province, China
11.5 x 10 x 4 cm
Ex-Jorge Diaz Asenjo Collection
Quartz Crystal Cluster
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
11 x 7 x 6 cm
Dioptase Crystals
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia, Africa
5.5 x 4.5 x 4 cm
Ex-Jorge Diaz Asenjo Collection
Pyrite, Sphalerite & Quartz
Huaron Mine, San Jose de Huayllay District, Cerro de Pasco,  Alcides Carrion Province, Pasco Department, Peru
10.5 x 8 x 4 cm
Ex-Jorge Diaz Asenjo Collection
Apatite Crystals on Quartz Crystal
Panasqueira Mines,  Panasqueira, Covilhã, Castelo Branco District, Portugal
10.5 x 7.5 x 6.5 cm
Ex-Jorge Diaz Asenjo Collection
Calcite Rosettes with Siderite
Turt Mine, Satu Mare, Maramures, Romania
12 x 7 x 6 cm
Ex-Jorge Diaz Asenjo Collection
Fluorite Crystals on Barite
Berbes, Berbes Mining area, Ribadesella, Asturias, Spain
12.5 x 8 x 5 cm
Ex-Jorge Diaz Asenjo Collection
Siderite Crystal with Barite, Chalcopyrite, Marcasite, Ferberite & Apatite
Mina Barroca Grande, Panasqueira, Covilha, Distrito Castelo Branco, Portugal
7.5 x 5 x 2.5 cm
Ex-Jorge Diaz Asenjo Collection
Chalcopyrite Crystals on Sphalerite with Manganoan Calcite & Quartz
Boldut Mine, Filon Gheorghe, Cavnic, Maramures, Romania
13 x 11.5 x 5 cm
Ex-Jorge Diaz Asenjo Collection
Green Quartz (Prazym) on Andradite Garnet
Iron Blue River, Dal'negorsk, Primorskiy Kray, Far East Russia
7 x 5.5 x 5 cm
Hübnerite on Quartz Crystal Cluster
Pasto Bueno District, Pallasca Province, Ancash Department, Peru
8.5 x 5.5 x 5.5 cm
Galena and Quartz
Kruchev dol Mine, Madan District, Southern Rhodope Mountains, Bulgaria (Mined 12/2004)
14 x 9.5 x 3 cm
Aesthetic blue Celestite crystals with a white blush on matrix. Nice quality for the locality.
Click here for information on the mineral Celestite.
Outstanding specimen of well defined brassy yellow Marcasite crystals adorning a group of large silver gray Galena crystals. The most unique habit for Marcasite is its "cock's comb" twinned habit. The crystals appear like a rooster's head crest. The habit is very distinctive and can not be mistaken for any other mineral.
Metaphysical Properties: Marcasite  illuminates the senses and intellect, softening expressiveness and dispelling the use of rash words and impatient actions.  Marcasite represents spiritual development, eliminating starvation of the spirit. 

A fine cluster of light golden, pyritohedral Pyrite crystals. Not you average Pyrite specimen.
Very aesthetic display of Quartz trimmed with Calcite on a large cluster of pyrite crystals.
Pyrite Crystal Cluster
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
10 x 7 x 5 cm
Ex-Jorge Diaz Asenjo Collection
Quartz with Calcite on Pyrite
Panasqueira Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal
16.5 x 9 x 5.5 cm
Celestite Crystals on Matrix
Newport Quarry, Monroe County, Michigan, USA
10 x 6.5 x 4.5 cm
Galena and Marcasite
Joplin, Missouri, USA
9.5 x 8 x 6 cm
Ex-George Feist Collection
Rich specimen of rare, beautiful and gemmy green crystals of Vesuvianite in a vug on a matrix of purple Vesuvianite from the Ed David Collection.
Click here for information on the Mineral Locality of Mont Saint-Hilaire, Quebec, Canada

Quebec is sometimes referred to as "La Belle Province" which means "The Beautiful Province".
Vesuvianite (Idoclase) in Vug on Purple Vesuvianite Matrix
Mont Saint Hillaire, Quebec, Canada
7.5 x 5.5 x 4.5 cm
Ex-Edward David Collection
Blue Fluorite with Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group,  Cave-in-Rock Sub-District,  Illinois - Kentucky Fluorspar District, 
Hardin Co.,  Illinois,  USA
11 x 8 x 1.5 cm
Ex-Gregory Crenko Collection
Quartz Crystals on Dolomite
Trepca Complex, Mitrovica, Kosovska Municipality, Kosovo
8.5 x 8 x 3.5 cm
Calcite Crystal
Jalgaon Quarries, Maharashtra, India
12 x 6.5 x 6 cm

Quartz var. Amethyst Crystal Cluster on Matrix
Piedra Parada, Las Vigas, Veracruz,  Mexico
10 x 7 x 4.5 cm
Fluorite Crystal Cluster
Annabel Lee Mine, Hardin County, Illinois, USA
11 x 5.5 x 3 cm
Ex-Gregory Crenko Collection
Fluorite Crystals with Barite & Quartz
Berbes Mining Area,  Ribadesella,  Asturias,  Spain
12.5 x 9 x 4.5 cm
Quartz Epimorphs after Anhydrite
Vampire Pocket, Uncompahgre Mining District, Ouray County, Colorado, USA
12 x 7 x 6.5 cm
Aesthetic coverage of white Calcite crystals on a plate of blue Fluorite from the Minerva Mine.

Glassy Quartz crystals on rhomboidal, white Dolomite.
Excellent, complex crystal of gemmy Calcite with minor blue Chalcedony. The high reflectance under photography masks the transparancy of the crystal in person. In very fine condition.
Interesting epimorph of Anhydrite crystals replaced by Quartz. An epimorph is a type of pseudomorph where a mineral replaces another mineral and the original mineral dissolves, leaving a hollow cast surrounded by the new mineral.
Nice cluster of  Amethyst crystals on matrix from the Las Vigas finds.
Bi-colored cluster of  bright yellow Fluorite crystals with blue trim at the top and with a speckling of Pyrite crystals.
Very aesthetic specimen of Berbes purple, clear, Fluorite crystals with blades of white Barite and  fine Quartz.