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Geographical
sections. Italy, Sardegna,
Carbonia-Iglesias prov, Iglesias, S.Giovanni mine |
Selection
of images from my collection. ©
Fernando Metelli. All photos and other material on this site are copyright,
if you wish to use them please contact me for permission
San
Giovanni mine (Punta della Torre, from Iglesias to Gonnesa) is an
important Pb/Zn/Ba mine of Iglesiente area. It is famous amongst collector
especially for calcite and baryte
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Baryte
XX up to 2cm wide, with cinnabar
inclusions and some marcasite grains
10x7cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.770
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Bornite
Blocky and malformed XX with rough curved faces, on and in calcite
semi transparent scalenohedrons
14x5cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.1072
Another photo: a bigger
view
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Calcite
Large X , 15 cm long, on a calcite smaller XX matrix. Calcite has
been posted on a pale blue barite XX matrix, as it is possible to
see in the 2nd photo
16x16cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.1290
Another photo: a
bigger
view
Another photo: a
detail
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Calcite
Scalenohedral twinning, part of a group of XX up to 11 cm long.
Calcite is brown for iron impurities and surfaces of XX are covered by
small other XX. From this famous mine, closed in 1997
22x13cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.634
Another photo: a bigger
view
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Calcite
A lot of XX, not well defined, up to 3cm long, scattered on
limestone matrix
11.5x11cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.602
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Calcite
Group of XX up to 5cm long
8.5x6cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.599
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Devilline
Microcrystalline devilline on tetrahedrite XX
0.6cm long. The matrix is made of dolomite XX that have light
pink reflections for cinnabar inclusions
10x8cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.1059
Another
photo: a bigger
and different view
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Smithsonite
Smithsonite after intergrown calcite XX. I find this piece
interesting because the calcite XX are empty and the 2nd mineral has
replaced the external part of the calcite XX with the rhombs, typical for
smithsonite. The smithsonite XX are small (approx 0,1cm long) but well
defined as you can see from the 2nd photo. It is classic piece from this
locality
8.5x10cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.752
Another photo: a detail
of this piece
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Sphalerite
Greenish XX of sphalerite, the biggest is 1cm wide. In a vug of pink
dolomite
8x10cm
S.Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.1153 Another photo: a detail
of this piece
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Stephanite
Group of XX, 0.1-0.2cm long, with metallic luster, on dolomite
matrix. It is a rare silver antimony sulfide mineral
4x5cm
S. Giovanni mine, Iglesias, Carbonia-Iglesias. Italy
Specimen n.711
Another photo: entire specimen
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