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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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 Posted: Apr 12, 2020 17:38 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hello.
From Tuscany.
Greetings. Take care.
Sante
| Mineral: | Sulphur, Pyrite |
| Locality: | | Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy |  |
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| Dimensions: | 59 x 35 mm |
| Description: |
| Niccioleta mine was one of most important in Italy. Pyrites coming from there, with crystals till 20 cm, are a classic not only for Italian collectors. Gypsum was also quite common in the mine. Sulphur, less common, is generally associated with Gypsum and, seldom, with Pyrite. |
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| Viewed: |
18764 Time(s) |
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| Mineral: | Sulphur, Pyrite |
| Locality: | | Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 59 x 35 mm |
| Description: |
| Rear view. The biggest Sulphur crystal is 11 mm. |
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| Viewed: |
18791 Time(s) |
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| Mineral: | Stibnite |
| Locality: | | Pereta Mine, Pereta, Magliano in Toscana, Grosseto Province, Toscana, Italy | |
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| Dimensions: | 80,7 x 60,7 mm |
| Description: |
| Aerial group of terminated crystals till 36 mm. |
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| Viewed: |
18814 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Apr 13, 2020 02:49 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| Wonderful specimens again, Sante, thanks for sharing!
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Apr 13, 2020 07:10 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hello, Tobi.
Thanks for your kind comment.
I dedicate to you next Tuscan specimen: first for your fondness for galena and second because it shows a certain "Neudorf" style.
I hope you like it.
Greetings from Gavorrano.
Sante
| Mineral: | Galena, Sphalerite, Siderite, Quartz |
| Locality: | | Bottino Mine, Sant'Anna (Sant'Anna di Stazzema), Apuan Alps, Stazzema Municipality, Lucca Province, Tuscany, Italy | |
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| Dimensions: | 65 x 51 mm |
| Description: |
| This Galena, from one of most important and classic Tuscan mine, shows the same habit, luster and associations of those from Neudorf. |
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| Viewed: |
18734 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2254
Location: Oklahoma
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| Posted: Apr 13, 2020 08:01 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| Wonderful galena specimen Sante. I love the association with siderite, sphalerite, and quartz.
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Pete Richards
Site Admin
Joined: 29 Dec 2008
Posts: 846
Location: Northeast Ohio
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| Posted: Apr 13, 2020 08:45 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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that is indeed a fine galena! It looks like the crystals are spinel twins, too.
_________________
Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Apr 13, 2020 10:31 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| Sante Celiberti wrote: | | Hello, Tobi. Thanks for your kind comment. I dedicate to you next Tuscan specimen: first for your fondness for galena and second because it shows a certain "Neudorf" style. I hope you like it. |
I don't like it, I LOVE it!!! Very beautiful galena specimen, one of the best I've seen from Italy!
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Rob Schnerr
Joined: 17 Mar 2019
Posts: 162
Location: Nieuwe Niedorp
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| Posted: Apr 13, 2020 11:33 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| ... and a good photo too ...!
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Apr 13, 2020 16:20 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Many thanks to all of you.
Michael, I'm happy that you like it. I was fortunate to find it in an old Tuscan collection. :-)
Pete, your very experienced eye (despite your recent surgery) sees better than before: yes, they are spinel twins. Take care. :-)
Tobi, coming from a galena lover, this is a big compliment. :-)
Rob, I'm aware that I'm a bad photographer. Simply, in this case the piece was photogenic. :-)
Campiano mine, despite being a pyrite mine, didn't produce collectible specimens of this mineral. In return it gave very beautiful samples of anhydrite and fluorite.
Warm greetings. Stay safe.
Sante
| Mineral: | Fluorite, Anhydrite, Pyrite |
| Locality: | | Campiano Mine, Montieri, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 57 x 30 mm |
| Description: |
| Water clear dodecahedra of Fluorite till 7 mm, some included by Pyrite, with tabular crystals of white Anhydrite till 10 mm. |
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| Viewed: |
18612 Time(s) |
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| Mineral: | Fluorite, Anhydrite, Pyrite |
| Locality: | | Campiano Mine, Montieri, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 57 x 30 mm |
| Description: |
| The transparence, luster and brightness of these crystals rival those of Naica, Dalnegorsk or Inner Mongolia. It's a pity that they rarely exceed 15 mm. |
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| Viewed: |
18585 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Apr 14, 2020 04:44 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| Sante Celiberti wrote: | | Tobi, coming from a galena lover, this is a big compliment. :-) |
It is, and well-deserved :-)
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Apr 14, 2020 18:25 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hello.
When, in the 1960s, I met my wife we were students in Rome, both from two different Italian regions.
Intrigued by her accent, I asked her where she was from. She replied: "Gavorrano". "Gavorrano..?". "Yes, where the pyrite mines are". "Pyrite..?". "O.k. I'll bring you a piece...".
My collection was born and developed in the name of pyrite.
While being attracted, like all of us, to aesthetic pieces, over time I began to appreciate the variety of crystallizations, modifications, associations, etc.
This premise was necessary because I will share many pyrite samples, since this has been the most exploited mineral in Tuscany since the Etruscan times, if not before.
I hope you find them interesting.
Warm greetings from Gavorrano and take care.
Sante
| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 113 x 92 mm |
| Description: |
| Lustrous cubic crystals till 34 mm, modified by dodecahedron, octahedron and diploid. Practically, the four basic habits. |
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| Viewed: |
18511 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 113 x 92 mm |
| Description: |
All the dodecahedral faces modifying the cube are jagged:
- sometimes the growth facets are sub-parallel to the dodecahedral modification;
- other times they are parallel to the diploid. In this case we are in the presence of a modification of the modification..!
On the cube corners there are:
- octahedral modifications, with indented surface;
- diploidal modifications, with smooth surface. |
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| Viewed: |
18502 Time(s) |
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| Mineral: | Stibnite, Stibiconite, Gypsum |
| Locality: | | Torre Carige, Capalbio, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 155 x 132 mm |
| Description: |
| Acquired just before quarantine from a very old Tuscan collection. |
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| Viewed: |
18494 Time(s) |
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| Mineral: | Stibnite, Stibiconite, Gypsum |
| Locality: | | Torre Carige, Capalbio, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 155 x 132 mm |
| Description: |
| Detail. Largest crystal 65 mm. |
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| Viewed: |
18544 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Apr 15, 2020 06:46 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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| Sante Celiberti wrote: | Pyrite
Locality: Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy
Dimensions: 113 x 92 mm |
An impressive pyrite, Sante, really nice. I like to learn a lot about Italian minerals through your collection thread, thanks :-)
Please more, best regards & stay safe!
Tobi
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Apr 15, 2020 10:30 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hi, Tobi.
Thank you, I'm happy you found it interesting.
Here are two aesthetically insignificant, but mineralogically instructive small samples.
Stay safe.
Sante
| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 68,7 x 34,5 mm |
| Description: |
| Text book example of conchoidal fracture. For mine technicians, proof of the excellent quality of the mineral. |
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| Viewed: |
18004 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 26 x 20,3 mm |
| Description: |
A fifty faceted floater crystal.
A modified cube by dodecahedron, octahedron and diploid. (6 cube + 12 dodecahedron + 8 octahedron + 24 diploid/triacisoctahedron = 50).
The triangle in the upper front face belongs to dodecahedron. The triangle in the upper left side belongs to octahedron. The surrounding three faces belong to diploid. |
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| Viewed: |
18060 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 26 x 20,3 mm |
| Description: |
Different view with the octahedral and diploidal modifications in evidence. This octahedral face is quite odd: the lustrous central part (although not triangular) might be the real octahedral modification, while the opaque, surrounding, triangular (not complanar) frame might be a diploidal modification of first order; so that the external three bigger faces would become diploidal modifications of second order.
Sorry for the nuisance... |
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| Viewed: |
18003 Time(s) |
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Apr 15, 2020 17:49 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hello.
Four pyrites more from four different Tuscan localities, but all of them with a common denominator.
The crystallographic literature defines the pentagonal-dodecahedron as an "impossible crystal". Let's say, to exemplify a lot, that in a dodecahedron there cannot be regular pentagons. Even the most perfect of pyritohedrons is an "impossible crystal".
So what to say about such deformed pyritohedra?
I hope you find them interesting.
Best greetings from Tuscany.
Sante
| Mineral: | Pyrite |
| Locality: | | Gavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 20,2 x 15,7 x 8 mm |
| Description: |
| A floater, flat, deformed pyritohedron with sub-parallel growth stages. |
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| Viewed: |
17946 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Boccheggiano Mines, Montieri, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 34,3 x 23,5 x 9 mm |
| Description: |
| A floater, flat pyritohedron with deep triglyph striations. |
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| Viewed: |
17929 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy | |
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| Dimensions: | 67 x 50 x 18 mm |
| Description: |
| A floater pyritohedron with a tabular habit. |
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| Viewed: |
17957 Time(s) |
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| Mineral: | Pyrite, Hematite |
| Locality: | | Rio Marina, Elba Island, Livorno Province, Tuscany, Italy | |
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| Dimensions: | 24 x 19,5 x 7 mm |
| Description: |
| A floater, very flat, iridescent pyritohedron with hematite. |
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| Viewed: |
17975 Time(s) |
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| Mineral: | Pyrite, Hematite |
| Locality: | | Rio Marina, Elba Island, Livorno Province, Tuscany, Italy | |
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| Dimensions: | 24 x 19,5 x 7 mm |
| Description: |
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| Viewed: |
17922 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Apr 15, 2020 19:00 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Hello Sante,
Very impressive Pyrite crystals. Boggles the mind.
Stay safe.
Don
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Bob Morgan
Joined: 18 Jan 2018
Posts: 251
Location: Savannah, Georgia
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| Posted: Apr 15, 2020 22:31 Post subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
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Sante,
I was so excited that someone else is interested in the variety of crystal faces of pyrite. My first image is of a small crystal with an octahedra face on a cube. It's from Elba. The dealer showed me that pyrite could have other forms than the cube. That got me going down a road of adventure.
In 2003 I presented a program on how to identify pyrite faces using Peruvian crystals at Tucson. It can be found at the Rochester of Science web site - rasny(.)org
Photos of two of my favorite Italian crystals are also attached.
'Sorry about the photo quality. It is a rush job.
| Mineral: | Pyrite |
| Locality: | | Elba Island, Livorno Province, Tuscany, Italy | |
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| Dimensions: | 1.5x.9x.9 cm |
| Description: |
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| Viewed: |
17870 Time(s) |
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| Mineral: | pyrite |
| Locality: | | Traversella, Chiusella Valley, Canavese District, Metropolitan City of Turin Province, Piedmont (Piemonte), Italy | |
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| Dimensions: | 1.4x1.4x1.3 |
| Description: |
| Five faces meet at a point - the four on either sides are diploid and the middle, bottom is cube. |
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| Viewed: |
17922 Time(s) |
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| Mineral: | Pyrite |
| Locality: | | Traversella, Chiusella Valley, Canavese District, Metropolitan City of Turin Province, Piedmont (Piemonte), Italy | |
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| Dimensions: | 1.2x1.4x1.5 cm |
| Description: |
| Another five face point with 4 diploids to either side and cube faces at bottom and on top. |
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| Viewed: |
17903 Time(s) |
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