These pieces of Zogno require a light by backlight to be able to see their true color. If you use a cold light, the color will come out dark blue, or a warm light the color will be dark purple. These specimens also have the particularity of being fluoresc4,40 x 3,60 x 3 cmReference : 3146
Very rare and special blue Dolomite crystals very well formed with an unusual blue color for the locality and uniform. All in a Calcite crystal as dissolved to reveal the Dolomite. Calcite is also very well formed. This piece is highlighted by its custom-made base that gives it a perfect...
Pretty blue and yellow corundum crystal with well defined edges from Madagascar.1,90 x 1,20 x 0,90 cmReference : 3152
Twin Iron Cross for this specimen of Goethite pseudomorphosis after Pyrite. Specimen from Gachala in Colombia.3 x 2,90 x 3 cmReference : 3153
Intense blue Aquamarine multi-centimetric crystal from Vietnam. The color is typical of this locality.2,20 x 0,45 x 0,40 cmReference : 3155
Pretty centimeter Wulfenite crystal with a beautiful orange color typical from the Rowley Mine.1,20 x 0,85 x 0,25 cmReference : 3156
Calcite rhombohedra colorless and shiny held by black chalcedony that offers a beautiful color contrast. This specimen was glued on the large crystal of Black Chalcedony.11,90 x 7,90 x 4,60 cmReference : 3157
Very beautiful Calcite plate in scalenohedra covered with Yttrofluorite. There is a large presence of Yttrofluorite crystals that gives this very pronounced purple color. Yttrofluorite is a variety of Yttrium-rich fluorite, violet, that reacts strongly to short UV rays. Rare specimen!6,70 x 4,70...
Association of Prehnite and Stellerite in pastel colors from Mali.6 x 4,20 x 4,40 cmReference : 3160
Centimeter Emerald Crystal on matrix that has a beautiful color contrast.3 x 2,20 x 1,60 cmReference : 3161
Two crystals nested in each other on matrix from Veracruz, Mexico.6,20 x 4,50 x 2 cmReference : 3162
Beautiful color contrast between the crystals of Dioptase dark green and those of Mimetite yellow, all very bright that offers light to this specimen from Mindouli, DR Congo.8 x 4,90 x 3,30 cmReference : 3164
Set of well-formed intense black Hubnerite crystals associated with Quartz spikes from Peru.4,30 x 2,80 x 2,70 cmReference : 3165
Crystals of Calcite ball yellow chick on gangue of Ferrosaponite black matte which offers a very beautiful contrast. Rare quality for the provenance.5,50 x 2,70 x 2,60 cmReference : 3166
The description of the piece from the Malain mine in Bourgogne, France, highlighting a gypsum nodule of orange to red color is captivating! The gypsum nodules of this region, taken in a clay marl, are indeed fascinating geological formations. The process 5,70 x 4,80 x 3,50 cmReference : 3167
Tip of Quartz with Siderite tracks from Morro Velho mine, Brazil.5,40 x 3,20 x 1,90 cmReference : 3168
Elegant crystals on matrix of Amethyst from the famous locality of Veracruz in Mexico.5,20 x 4,50 x 4 cmReference : 3170
Centimetric crystal of Azurite from Touissit in Morocco.1,80 x 1,10 x 1 cmReference : 3171
Very nice specimen of English Fluorite with the typical frosted appearance of the locality. The edges of the cubes are well defined and sharp. This piece is sold with its custom-made base made by us.9,40 x 8,10 x 3,40 cmReference : 3172
Prehnite balls held in their case of Epidote crystals from Diamonkara in Mali.5,70 x 4,60 x 3,70 cmReference : 3173
Crystallized sulfur with sharp edges and chick yellow color from the Cozzo Disi mine in Italy.3,60 x 2,60 x 2,10 cmReference : 3174
Stilbite crystals pink salmon, forming like a bow tie at the base, and highlighted by their custom base.6,90 x 3,20 x 4 cmReference : 3175
