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Search found 22 matches |
Author | Message |
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Topic: Peruvian / French or Cornish Chalcopyrite on Fluorite? | |
jfc035 Replies: 12 Views: 6965 |
Forum: What is it? - Where is it from? Posted: Dec 29, 2021 15:42 Subject: Re: Peruvian / French or Cornish Chalcopyrite on Fluorite? |
Hi James
I'm trying to decipher where such specimen comes from. I believe that the combination is distinctive enough to allocate it, hopefully someone has seen something like that before (?) Any edu ... |
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Topic: Peruvian / French or Cornish Chalcopyrite on Fluorite? | |
jfc035 Replies: 12 Views: 6965 |
Forum: What is it? - Where is it from? Posted: Dec 29, 2021 11:53 Subject: Re: Peruvian / French or Cornish Chalcopyrite on Fluorite? |
"At the moment the French say it cannot be French,"
I do not see this anywhere. The label says France, and Jordi and Makekerowill think it could be France, so why not? In the absence of a ... |
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Topic: Peruvian / French or Cornish Chalcopyrite on Fluorite? | |
jfc035 Replies: 12 Views: 6965 |
Forum: What is it? - Where is it from? Posted: Dec 29, 2021 08:46 Subject: Re: Peruvian / French or Cornish Chalcopyrite on Fluorite? |
Thanks for the current tips, but the question is still open...
At the moment the French say it cannot be French, the Peruvian experts say they're dubious about a Peruvian origin... only the Cornish a ... |
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Topic: Peruvian / French or Cornish Chalcopyrite on Fluorite? | |
jfc035 Replies: 12 Views: 6965 |
Forum: What is it? - Where is it from? Posted: Dec 24, 2021 08:11 Subject: Re: Peruvian / French or Cornish Chalcopyrite on Fluorite? |
Thanks Jordi. I've also written to Alain yesterday and await his feedback.
Note however that there is no sphalerite nor dolomite at Mont-roc, in contrast to this specimen. |
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Topic: Peruvian / French or Cornish Chalcopyrite on Fluorite? | |
jfc035 Replies: 12 Views: 6965 |
Forum: What is it? - Where is it from? Posted: Dec 24, 2021 06:46 Subject: Peruvian / French or Cornish Chalcopyrite on Fluorite? |
I'm trying to figure out where this chalcopyrite on pale green fluorite comes from. The chalcopyrite disphenoids are up to 2 cm and the overall specimen is 10cm. it is associated with white rhombs of ... | |
Topic: Pyrargyrite from where? | |
jfc035 Replies: 1 Views: 2616 |
Forum: What is it? - Where is it from? Posted: Oct 31, 2021 15:54 Subject: Re: Pyrargyrite from where? |
Seems to be from San Genaro (Jaroslav Hyrsl) | |
Topic: Pyrargyrite from where? | |
jfc035 Replies: 1 Views: 2616 |
Forum: What is it? - Where is it from? Posted: Oct 31, 2021 10:29 Subject: Pyrargyrite from where? |
Hello, would anyone know/have some tips where this pyrargyrite (SEM-EDX confirmed) may come from? it is associated with what looks like to be rosettes of baryte (yet the specimen is not that heavy; m ... | |
Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Aug 15, 2021 11:22 Subject: Re: Favourite Galenas? |
Another one from Weardale; Likely collected in the last period of activity of this mine, in the 70-80s. | |
Topic: Rarest beautifully crystallized minerals | |
jfc035 Replies: 4 Views: 5256 |
Forum: Minerals and Mineralogy Posted: Aug 15, 2021 11:08 Subject: Re: Rarest beautifully crystallized minerals |
Wittichenite is a good trade off between rarity and beautiness of the (best, australian) crystals.
Published at: The MIM Museum in Beirut, Lebanon Mineral: Wittichenite Locality: Cattle Gri ... |
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Topic: A mineralogical trip through Italy by Sante Celiberti | |
jfc035 Replies: 341 Views: 279461 |
Forum: A mineralogical trip through Italy by Sante Celiberti Posted: Aug 02, 2020 13:19 Subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
Hello, JF.
I really appreciate your compliments, coming from a sulfosalts collector. The mineralogical club of Siena organizes an annual fair in Colle Val d'Elsa (April), and the club of Florenc ... |
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Topic: A mineralogical trip through Italy by Sante Celiberti | |
jfc035 Replies: 341 Views: 279461 |
Forum: A mineralogical trip through Italy by Sante Celiberti Posted: Aug 02, 2020 13:18 Subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
X-ray diffraction: the only solution to identify unambiguously acicular (fibrous) sulfosalts....
best regards jf |
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Topic: A mineralogical trip through Italy by Sante Celiberti | |
jfc035 Replies: 341 Views: 279461 |
Forum: A mineralogical trip through Italy by Sante Celiberti Posted: Jul 25, 2020 01:59 Subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
Hello Sante
congrats; these are really very nice specimens of these truly rare sulfosalts. The rouxelite is indeed exceptionnal. Best regards jf |
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Topic: A mineralogical trip through Italy by Sante Celiberti | |
jfc035 Replies: 341 Views: 279461 |
Forum: A mineralogical trip through Italy by Sante Celiberti Posted: Jul 20, 2020 09:01 Subject: Re: Collection of Sante Celiberti - A mineralogical trip through Italy |
Hello.
Another Tuscan specimen with a rare association. Warm greetings. Sante Hello: is this cinnabar or metastibnite?? regards |
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Topic: The Joy of Tucson, 2020 Gail Spann Experience | |
jfc035 Replies: 107 Views: 154118 |
Forum: Mineral Shows by Gail Spann Posted: Feb 05, 2020 15:41 Subject: Re: The Joy of Tucson, 2020 Gail Spann Experience |
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Thanks Gail for the great preview. what is the specimen just left aside of your german stephanite: is that a super bolivian bournonite? would you mind posting a detailed photo of this one? H ... |
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Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 10, 2018 14:46 Subject: Re: Favourite Galenas? |
Jordi, Tobi
My sincere apologies! Many thanks for fixing my posts. I promise to be a good scholar from now -)) Best, jf |
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Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 08, 2018 15:25 Subject: Re: Favourite Galenas? |
Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 08, 2018 15:21 Subject: Re: Favourite Galenas? |
Galena needles (“knitted galena”) associated with brownish spherulites of Sphalerite (overall 7.5 x 6.0 x 1.5 cm). From Les Vieux Travaux mine, Les Malines District, Saint-Laurent-le-Minier, Gard, Oc ... | |
Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 08, 2018 15:20 Subject: Re: Favourite Galenas? |
Another view | |
Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 08, 2018 15:18 Subject: Re: Favourite Galenas? |
Typical specimen of “Knitted Galena” showing neat “dendritic” forms (those are actually branched three-dimensional single-crystal skeletal forms; see: Geochem. Mineral. Petrol. Sofia, 2006, 44, 1-18.) ... | |
Topic: Favourite Galenas? | |
jfc035 Replies: 36 Views: 62415 |
Forum: Favourite Minerals Posted: Apr 08, 2018 15:16 Subject: Re: Favourite Galenas? |
Thin bladed, penetration twinned, lustrous crystals of Galena to 3.0 cm in size, with pearly white Dolomite crystals in association (overall 10.0 x 8.5 x 7.0 cm, 2.18 pounds). From recent finds in thi ... | |
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