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Bergur_E_Sigurdarson
Joined: 21 Dec 2017
Posts: 148
Location: Paipa, Colombia
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 Posted: Jan 13, 2021 09:41 Post subject: Re: Final balance time. |
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| Chris Rayburn wrote: | | That's a beauty Bergur, congratulations. Is that a Japan Law twin I see at around 10 o'clock in the bottom photo? |
No, but it has a different habit to the rest, being tabular
| Mineral: | Quartz |
| Dimensions: | 34 x 21 x 19 cm |
| Description: |
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16002 Time(s) |
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: Jan 13, 2021 14:29 Post subject: Re: Final balance time. |
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It is tabular.
It has grown on A axis.
In the photo you cannot appreciate the possible presence of a string.
But if it is a faden, somebody would have to explain its formation among so many prismatic crystals.
A very nice and interesting quartz. Congratulations.
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bob kerr
Joined: 13 Nov 2011
Posts: 638
Location: Monroeville PA
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| Posted: Jan 13, 2021 23:04 Post subject: Re: Final balance time. |
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OK - one last acquisition from the 2020 Tucson Shows. The French dealership of Minerama has been coming to the Tucson Shows for a number of years now and they can always be counted on to provide some wonderful specimens. This show they had three venues - the Top Gem annex, Mineral City and the HTCC. I've found that they typically divide the specimens of a given find among the three venues so it does one good to search all three.
I find this combo of a lead based secondary mineral (cerussite) in association with a copper based secondary mineral (malachite) not only aesthetic but also mineralogically interesting. Only a handful of localities around the world produces this - with Tsumeb and Tiger immediately coming to mind. This is from the "copper crescent" of Katanga in the Congo.
hope you enjoy these.
bob
| Mineral: | Cerussite on Malachite |
| Locality: | | Kabolela Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
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| Description: |
| Wonderful sixling cerussite crystals covering a vug of botryoidal malachite |
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29732 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Jan 15, 2021 02:43 Post subject: Re: Final balance time. |
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| Bergur_E_Sigurdarson wrote: | Quartz, aragonite, limonite
Locality: Colombia
Dimensions: 34 x 21 x 19 cm |
Outstanding specimen, I love it!
And Bob, the malachite/cerussite specimen is also really fine!
Regards
Tobi
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