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Tennessee



Baryte
Baryte in the typical rounded formation, on a dark red sphalerite matrix, crystallized, with cubic dark blue fluorite XX (edge up to 1 cm)
13x7cm
Elmwood mine, Tennessee. Usa
Specimen n.1496

2nd photo
3rd photo

 

Calcite
Well defined golden-yellow single X, 3.3 cm high, on dolostone matrix
11x10cm
Elmwood mine, Tennessee. Usa
Specimen n.436

2nd photo
3rd photo



Fluorite
Cubic X, with stepped formation, on a small sphalerite matrix
8.5x6.5
cm
Elmwood mine, Tennessee. Usa
Specimen n.1490

Other photos



Fluorite
Cubic XX, with phantoms, up to 2 cm, with a X of  calcite, on compact sphalerite
8.5x7.5
cm
Elmwood mine, Tennessee. Usa
Specimen n.1495

2nd photo
3rd photo
4th photo
5th photo

 

Fluorite
Pale purple cubic XX, edge up to 3.6cm, on black sphalerite
10x7.5cm
Elmwood mine, Tennessee. USA
Specimen n.581

2nd photo
3rd photo

 

Fluorite
Pale purple cubic XX, edge up to 2cm, on ruby dark sphalerite, a classic piece
5.5x5cm
Elmwood mine, Tennessee. USA
Specimen n.675

Illinois




Calcite
Semi
-transparent XX of calcite, on limestone
11x9cm
Cave-in-Rock District, Illinois. USA
Specimen n.264

2nd photo
3rd photo

 

Fluorite
Cubic XX, max edge 3.5cm, on a complex of calcite growing XX, terminated. The fluorite X in evidence has a 2.8cm edge and is very well defined. This is a specimen from the fluorspar mine which was closed in 1996

20x9cm
Minerva mine n.1, Cave-in-Rock District, llinois. USA
Specimen n.432

 

Fluorite
Cubic intergrown XX, max edge 5.1cm. The combination of yellow and dark purple is very fine
9x8cm
minerva mine n.1, Cave-in-Rock District, Illinois. USA
Specimen n.429

 

Fluorite
Transparent cubic X, 2 cm edge, matrix based. The X  shows a  clear phantom inside, the external part of the crystal is purple tinged.
8x6cm
Annabel Lee mine, Illinois. USA
Specimen n.353

Indiana

 

Calcite
Yellow semitransparent XX, up to 7.7 cm long, with some betumen on limestone
10x12cm
Meshberger stone co. quarry, Columbus, Indiana. USA
Specimen n.1309

2nd photo
3rd photo



Fluorite
Single X of pale yellow and transparent fluorite on limestone, edge up to 1.7 cm

7x7cm
May Stone and Sand Quarry, Fort Wayne, Allen Co., Indiana. USA
Specimen n.1504

2nd photo
3rd photo
4th photo



Fluorite
Yellow and transparent X of fluorite, edge up to 2 cm

3x4.5cm
May Stone and Sand Quarry, Fort Wayne, Allen Co., Indiana. USA
Specimen n.1505

2nd photo

Indiana



Copper
Typical floater copper
, f
rom the most prolific area in the world for Copper specimens
16.8x7.5cm
Caledonia Mine, Mass City, Ontonagon Co., Michigan. USA
Specimen n.1592

2nd photo

Missouri



Calcite
XX of yellow calcite, up to 7.8 cm long, on a small matrix with some XX of marcasite
8x7.5cm
Sweetwater mine, Viburnum Trend District, Missouri. USA
Specimen n.1524

2nd photo
3rd photo

 

Calcite
XX up to 3xm, some double terminated, on matrix covered by dolomite and chalcopyrite in small XX
8x8cm
Sweetwater mine, Viburnum Trend District, Missouri. USA
Specimen n.639

2nd photo



Calcite
Prismatic XX of yellowish calcite, up to 3.1 cm long
8x4cm
Sweetwater mine, Viburnum Trend District, Missouri. USA.
Specimen n.1444

2nd photo

 

Galena
Cubic X posted on the limestone matrix. Edge max is 5.8. A typical sample from Viburnum 
10x8.5cm
Miliken mine, Viburnum Trend District, Missouri. USA
Specimen n.321

2nd photo

 

Sphalerite
Large XX of black sphalerite, on a matrix covered by a lot of small red semistransparent sphalerite XX
12x12cm
Joplin Field, Jasper Co., Missouri. USA
Specimen n.327

2nd photo
3rd photo: view on black sphalerite
4th photo: view on red sphalerite
5th photo: another view on red sphalerite

 

Arizona

 

Fluorite
Group of octahedral XX, edge up to 0.9 cm. The XX, white opaque, are covered by a coating of oxides, I suppose copper oxides
9x5.5cm
Monarch mine, Yavapai Co., Arizona. USA
Specimen n.444

 

Glauberite
Characteristic steep bipyramidal floating crystal, slightly striated, of this uncommon mineral (maybe it is a pseudomorphosis of calcite after glauberite; more common to find empty cast or pseudomorphs in localities where little or no glauberite currently exists. It forms in evaporite and clay deposits and it is soluble in water). Twinned with a little crystal. From the most famous occurrence
6x3cm
Camp Verde, Yavapai Co., Arizona. USA
Specimen n.220

 

Wulfenite
Group of well defined tabular XX, on the matrix; the bigger is elongated, 1.2cm tall. Color is dark red and XX are very bright; in the 5th photo a close up view on the square X
7x6cm
Red Cloud mine, La Paz Country, Arizona. USA
Specimen n.775

2nd photo
3rd photo
4th photo
5th photo

 

Wulfenite
Parallel XX 2.8x1.2cm wide, bright and semitransparent, on matrix. The crystallized area of the photo is 1.2x1.5cm (one side of the specimen, with XX on both sides). This mine is famous for these red wulfenite XX
2.7x5cm
Red Cloud mine, La Paz Country, Arizona. USA
Specimen n.389

Colorado


Microline var amazonite
A X of amazonite, pale blue, is posted on the matrix, sourrounded by smoky quartz XX up to 5 cm  
7x6cm
Smoky Hawk claim, Crystal Peak area, Teller Co, Colorado. USA
Specimen n.1565

2nd photo

California

 

Andradite var melanite
Some bright and well formed XX, edge up to 0.7cm
9x8cm
San Benito Co, California. USA
Specimen n.405

New Mexico

 

Smithsonite
Green grains and botryoidal masses, on mineralized matrix 
7.5x6cm
Kelly mine, Magdalena District, New Mexico. USA
Specimen n.659



Smithsonite
Lilac-purple botryoidal mass
8x7cm
Kelly mine, Magdalena District, New Mexico. USA
Specimen n.658

2nd photo

Canada


Fluorapatite
Brown doubly-terminated hegagonal prism of fluorapatite (3 x 1.1 cm) immersed in massive pink calcite. A classic specimen from that place
9x6.5cm
Yates mine, Otter Lake, Quebec. Canada
Specimen n.376

2nd photo
3rd photo


 

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