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27 Jul-22:43:51 Re: collection of volkmar stingl (Volkmar Stingl)
27 Jul-13:17:17 Re: celestite geode in dolomite block? or what, halite? (Don Lapham)
26 Jul-15:38:37 Re: collection of firmo espinar (Firmo Espinar)
26 Jul-13:21:53 Re: collection of volkmar stingl (Volkmar Stingl)
25 Jul-16:30:28 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
25 Jul-11:09:26 Re: collection of volkmar stingl (Volkmar Stingl)
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25 Jul-08:13:07 Re: celestite geode in dolomite block? or what, halite? (Bob Morgan)
25 Jul-02:46:09 Re: celestite geode in dolomite block? or what, halite? (James Catmur)
24 Jul-14:52:13 Re: black, metallic, yellow oxide? (Linus)
24 Jul-14:41:03 Re: collection of michael shaw (Michael Shaw)
24 Jul-13:47:19 Celestite geode in dolomite block? or what, halite? (Corneldumitru)
24 Jul-12:18:05 Re: black, metallic, yellow oxide? (Johan Kjellman)
24 Jul-10:26:19 Re: collection of volkmar stingl (Volkmar Stingl)
23 Jul-18:40:43 Re: black, metallic, yellow oxide? (Bob Carnein)
23 Jul-17:36:31 Re: black, metallic, yellow oxide? (Linus)
23 Jul-17:34:00 Re: black, metallic, yellow oxide? (Linus)
23 Jul-09:37:34 Re: help identify this rock. Sapphire?? (James Catmur)
23 Jul-09:03:02 Re: unknown mineral from pikes peak pegmatite (Bob Morgan)
23 Jul-07:27:50 Re: black, metallic, yellow oxide? (Susan Robinson)
23 Jul-02:23:46 Re: mineral talks live - episode 41 - alan hart - ceo; gem-a, london, england, united king (Tobi)
23 Jul-02:20:06 Re: hillman hall of minerals and gems (Tobi)
23 Jul-02:15:45 Re: black, metallic, yellow oxide? (Tobi)
23 Jul-02:03:58 Re: help identify this rock. Sapphire?? (Tobi)
22 Jul-22:56:37 Re: help identify this rock. Sapphire?? (Steveb)

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Jordi Fabre
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PostPosted: Jan 10, 2021 15:09    Post subject: Popular Minerals - Brucite from Killa Saifullah District, Pakistan  

Botryoidal aggregates of Brucite on matrix with visible crystal forms.


Brucite - Killa Saifullah District_Balochistan_Pakistan.jpg
 Mineral: Brucite
 Locality:
Killa Saifullah District, Balochistan (Baluchistan), Pakistan
 Dimensions: Specimen size: 13.2 × 7.8 × 2 cm
 Description:
 Viewed:  4081 Time(s)

Brucite - Killa Saifullah District_Balochistan_Pakistan.jpg


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Volkmar Stingl




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PostPosted: Jan 11, 2021 00:42    Post subject: Re: Popular Minerals  

This is just a "WOW"-piece! This color....... Tremendous!

Volkmar
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PostPosted: Jan 11, 2021 07:40    Post subject: Re: Popular Minerals  

I agree, an outstanding specimen - one of the best I've seen from this amazing find!
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PostPosted: Jan 11, 2021 17:25    Post subject: Popular Minerals - Adamite (variety manganoan) from the Ojuela Mine, Mexico  

Groups of Adamite crystals on a Goethite matrix. The crystals have a pale lilac color in the prism and much more intense on the terminations.


Adamite variety manganoan on Goethite - Ojuela Mine_Durango_Mexico.jpg
 Mineral: Adamite (variety manganoan)
 Locality:
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
 Dimensions: Specimen size: 10 × 8.2 × 5.7 cm / main crystal size: 1.5 × 1 cm
 Description:
 Viewed:  3959 Time(s)

Adamite variety manganoan on Goethite - Ojuela Mine_Durango_Mexico.jpg


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PostPosted: Jan 18, 2021 14:08    Post subject: Popular Minerals - Botryoidal Rhodochrosite from the Madem-Lakko Mine  

Very aerial growth of botryoidal aggregates of Rhodochrosite crystals on matrix, with Calcite and Pyrite.


Rhodochrosite with Calcite - Madem-Lakko Mine_Macedonia Department_Greece.jpg
 Locality:
Madem-Lakko Mine, Stratoni operations, Cassandra Mines, Chalkidiki Prefecture, Macedonia Department, Greece
 Dimensions: 5.1 × 4.2 × 2.7 cm
 Description:
Collected in 2010
 Viewed:  3869 Time(s)

Rhodochrosite with Calcite - Madem-Lakko Mine_Macedonia Department_Greece.jpg


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PostPosted: Feb 14, 2021 13:41    Post subject: Popular Minerals - Fluorite from Berbes, Spain  

Very sharp crystals of Fluorite with geometric color zoning, blue on the edges.
On matrix, with small Quartz crystals and lamellar Baryte crystals.



Fluorite with Quartz - Berbes mining area_Principality of Asturias_Spain.jpg
 Mineral: Fluorite with Quartz and Baryte
 Locality:
Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias, Spain
 Dimensions: Specimen size: 12.8 × 9.8 × 5.6 cm / main crystal size: 4.3 × 4 cm
 Description:
 Viewed:  3547 Time(s)

Fluorite with Quartz - Berbes mining area_Principality of Asturias_Spain.jpg


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Tobi




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PostPosted: Feb 15, 2021 05:22    Post subject: Re: Popular Minerals - Fluorite from Berbes, Spain  

Jordi Fabre wrote:
Fluorite with Quartz and Baryte
Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias, Spain
Specimen size: 12.8 × 9.8 × 5.6 cm / main crystal size: 4.3 × 4 cm
What a gorgeous Berbes specimen, I ❤ it!
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PostPosted: Feb 17, 2021 14:44    Post subject: Popular Minerals - Malachite on Shattuckite from the Kandesei Mine, Namibia  

Botryoidal coating of Shattuckite with a velvety appearance highlighting a centered aggregate of primary Malachite crystals.


Shattuckite with Malachite - Kandesei Mine_Kunene Region_Namibia.jpg
 Mineral: Malachite on Shattuckite
 Locality:
Kandesei Mine, Kaokoveld Plateau, Kunene Region, Namibia
 Dimensions: Specimen size: 8.2 × 6.2 × 4.8 cm / main crystal size: 3.4 × 1 cm
 Description:
 Viewed:  3331 Time(s)

Shattuckite with Malachite - Kandesei Mine_Kunene Region_Namibia.jpg


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PostPosted: Feb 18, 2021 17:28    Post subject: Gold (spinel twin) from Aouint Ighoman, Morocco  

The specimen shows sharp octahedrons, some parts with hopper formations, in parallel growths, very stylized and with a very distinct spinel-law twin.

Check the excellent report of Dr. César Menor-Salván about the singularity of these Golds: The native gold from Guelmim-Oued Noun, Morocco



Gold (spinel twin) from Aouint Ighoman - Guelmim-Oued Noun - Morocco.jpg
 Mineral: Gold (spinel twin)
 Locality:
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region, Morocco
 Dimensions: Specimen size: 3.4 × 0.5 × 0.5 cm / main crystal size: 0.3 × 0.2 cm
 Description:
 Viewed:  3243 Time(s)

Gold (spinel twin) from Aouint Ighoman - Guelmim-Oued Noun - Morocco.jpg


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PostPosted: Feb 20, 2021 15:56    Post subject: Popular Minerals - Cassiterite from Amo, Yunnan, China  

Twinned Cassiterite crystals on matrix and with Quartz. Among the best pieces found in this locality.


Cassiterite with Quartz - Amo deposit_Yunnan Province_China.jpg
 Mineral: Cassiterite and Quartz
 Locality:
Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province, China
 Dimensions: Specimen size: 11.8 × 9.7 × 7.5 cm / main crystal size: 4.7 × 4.7 cm
 Description:
Collected in 2002
 Viewed:  3167 Time(s)

Cassiterite with Quartz - Amo deposit_Yunnan Province_China.jpg



Cassiterite with Quartz - Amo deposit, Yunnan Province China.jpg
 Mineral: Cassiterite and Quartz
 Locality:
Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province, China
 Dimensions: Crystal: 4.7 × 4.7 cm
 Description:
Collected in 2002
 Viewed:  3169 Time(s)

Cassiterite with Quartz - Amo deposit, Yunnan Province China.jpg


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PostPosted: Feb 22, 2021 04:48    Post subject: Re: Popular Minerals - Cassiterite from Amo, Yunnan, China  

Jordi Fabre wrote:
Twinned Cassiterite crystals on matrix and with Quartz. Among the best pieces found in this locality (Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province, China)
Outstanding quality, really a great and unique specimen!
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PostPosted: Feb 23, 2021 14:05    Post subject: Popular Minerals - Dissakisite-(Ce)/Allanite-(Ce) on Dolomite from Trimouns Mine, France  

Crystal on matrix of Dolomite of the isomorphous series Dissakisite-(Ce)/Allanite-(Ce)
The majority of Trimouns specimens present color zoning that seems to indicate the presence of both species in the same crystal, the darkest areas corresponding to Allanite-(Ce), as they are richer in iron, and the dominant lighter areas to Dissakisite-(Ce)



Dissakisite-(Ce)-Allanite-(Ce) with Dolomite - Trimouns Mine_Occitanie_France.jpg
 Mineral: Dissakisite-(Ce)/Allanite-(Ce) with Dolomite
 Locality:
Trimouns Mine, Luzenac, Ariège, Occitanie, France
 Dimensions: Crystal size: 0.9 × 0.1 cm
 Description:
 Viewed:  3013 Time(s)

Dissakisite-(Ce)-Allanite-(Ce) with Dolomite - Trimouns Mine_Occitanie_France.jpg


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PostPosted: Feb 25, 2021 18:00    Post subject: Popular Minerals - Octahedral Fluorite from Shangbao Mine, China  

Large crystal with an apparently octahedral habit, formed by polycrystalline growths with dominant dodecahedral forms.
On matrix, with Quartz crystals and white Dolomite rhombohedra.



Fluorite octahedral with Quartz and Dolomite - Shangbao Mine_Hunan Province_China.jpg
 Mineral: Octahedral Fluorite with Dolomite and Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Specimen size: 11.3 × 9.5 × 9.2 cm / main crystal size: 10 × 9.5 cm
 Description:
 Viewed:  2907 Time(s)

Fluorite octahedral with Quartz and Dolomite - Shangbao Mine_Hunan Province_China.jpg


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PostPosted: Feb 27, 2021 15:23    Post subject: Popular Minerals - Rhodochrosite on Hisingerite-Neotocite (Series) from Mexico  

Botryoidal growths of rhombohedral Rhodochrosite crystals which cover a botryoidal Hisingerite-Neotocite (Series) matrix.


Rhodochrosite with Hisingerite-Neotocite Series - Santa Eulalia District_Chihuahua_Mexico.jpg
 Mineral: Rhodochrosite on Hisingerite-Neotocite (Series)
 Locality:
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
 Dimensions: 6.2 × 5.8 × 3.6 cm
 Description:
 Viewed:  2804 Time(s)

Rhodochrosite with Hisingerite-Neotocite Series - Santa Eulalia District_Chihuahua_Mexico.jpg



Rhodochrosite with Hisingerite-Neotocite Series detail - Santa Eulalia District_Chihuahua_Mexico.jpg
 Mineral: Rhodochrosite on Hisingerite-Neotocite (Series)
 Locality:
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
 Description:
The matrix of Hisingerite-Neotocite (Series) coated by Rhodochrosite
 Viewed:  2800 Time(s)

Rhodochrosite with Hisingerite-Neotocite Series detail - Santa Eulalia District_Chihuahua_Mexico.jpg


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PostPosted: Mar 04, 2021 02:54    Post subject: Re: Popular Minerals - Octahedral Fluorite from Shangbao Mine, China  

Jordi Fabre wrote:
Octahedral Fluorite with Dolomite and Quartz
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
Specimen size: 11.3 × 9.5 × 9.2 cm / main crystal size: 10 × 9.5 cm.
I really like Shangbao fluorites, and that one is among the most impressive I have seen, the size of that crystal is amazing. Absolutely stunning - the perfect fluorite specimen!
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PostPosted: Mar 06, 2021 16:26    Post subject: Popular Minerals - Creedite from Navidad Mine, Mexico  

Druse on matrix of bipyramidal Creedite crystals, some of them doubly terminated, with sharp pointed terminations.
The specimen is quite different from those known from this locality in recent years, although in some old collections there are similar specimens from the same source, which coincides with the indications that this find was made in old galleries of the mine.



Creedite - Navidad Mine_Durango_Mexico.jpg
 Mineral: Creedite
 Locality:
Navidad Mine, Abasolo, Rodeo, Municipio de Rodeo, Durango, Mexico
 Description:
Specimen size: 8.6 × 6.2 × 5.5 cm / main crystal size: 0.6 × 0.3 cm
 Viewed:  2351 Time(s)

Creedite - Navidad Mine_Durango_Mexico.jpg


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PostPosted: Mar 14, 2021 14:34    Post subject: Popular Minerals - Quartz (variety rose Quartz) from Sapucaia do Norte, Brazil  

Group of Quartz crystals (variety rose quartz)
What stands out most in the piece is how sharp the crystals are since rose quartz very rarely presents so much definition.
A Brazilian classic from the Rock Currier collection (No. 5105)
Specimen size: 11.1 ×5.9 × 3.9 cm
Main crystal size: 3.4 × 1.1 cm

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PostPosted: Mar 17, 2021 13:22    Post subject: Popular Minerals - Silver with Acanthite from the Balcoll Mine  

Dendritic growths of very elongated Silver crystals covered by darker Acanthite and on a Calcite matrix.


Silver with Acanthite and Calcite - Balcoll Mine_Catalonia_Spain.jpg
 Mineral: Silver coated by Acanthite and on Calcite
 Locality:
Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia, Spain
 Dimensions: 5.2 × 3.7 × 5.2 cm
 Description:
 Viewed:  1945 Time(s)

Silver with Acanthite and Calcite - Balcoll Mine_Catalonia_Spain.jpg


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PostPosted: Apr 29, 2021 16:17    Post subject: Popular Minerals - Hydroboracite with Celestine on Calcite  

Centered groups of acicular Hydroboracite crystals with small crystals of Celestine on orange spheroidal growths of Calcite.


Hydroboracite with Calcite - Hisarcik Mine_Turkey.jpg
 Mineral: Hydroboracite with Celestine on Calcite
 Locality:
Hisarcik Mine, Emet Borate deposit, Emet, Emet District, Kütahya Province, Aegean Region, Turkey
 Dimensions: Size of the whole specimen: 11.7 × 8.5 × 8.2 cm
 Description:
 Viewed:  1236 Time(s)

Hydroboracite with Calcite - Hisarcik Mine_Turkey.jpg


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