We use cookies to show content based on your preferences. If you continue to browse you accept their use and installation. More information. >

FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences

FMF English Forum is moderated by John S. White and Peter Megaw
 

Spanish message board






Newest topics and users posts
17 Aug-12:46:45 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Tobi)
17 Aug-12:43:23 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Don Lum)
17 Aug-11:59:44 Re: joplin museum complex / the everett j. Ritchie tri-state mineral museum (Robert Seitz)
17 Aug-11:17:38 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Philippe Durand)
17 Aug-08:03:55 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Alex D.)
17 Aug-04:24:34 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Jordi Fabre)
17 Aug-03:24:06 Presentation of new members - alex, original from belgium, but recently moved to japan (Alex D.)
16 Aug-22:25:26 Re: joplin museum complex / the everett j. Ritchie tri-state mineral museum (Robert Seitz)
16 Aug-20:24:50 Re: new zealand alpine minerals? (Greg Lilly)
16 Aug-19:11:05 Re: don lum collection (Don Lum)
16 Aug-17:45:48 The mizunaka collection - quartz (Am Mizunaka)
16 Aug-10:48:30 Re: oddities from brandberg, namibia (Pierre Joubert)
16 Aug-10:33:03 Re: oddities from brandberg, namibia (Jordi Fabre)
16 Aug-10:12:44 Re: oddities from brandberg, namibia (Pierre Joubert)
16 Aug-10:04:03 Re: where is it from? (Don Lum)
16 Aug-10:02:40 Re: where is it from? (Don Lum)
16 Aug-09:29:05 Re: collection of michael shaw (Crosstimber)
16 Aug-08:59:05 Re: where is it from? (Jordi Fabre)
16 Aug-08:52:15 Re: where is it from? (Tony L. Potucek)
16 Aug-08:41:53 Re: don lum collection (Don Lum)
16 Aug-06:50:19 Re: potential toxicity of handling raw malachite specimens. (Peter Lemkin)
16 Aug-05:43:48 Re: collection of heimo hellwig (Heimo Hellwig)
16 Aug-04:21:32 Re: black or very dark background? (Pierre Joubert)
16 Aug-02:40:44 Re: don lum collection (Jordi Fabre)
16 Aug-02:06:43 Re: where is it from? (Heimo Hellwig)

For lists of newest topics and postings click here


RSS RSS

View unanswered posts

Why and how to register

Index Index
 FAQFAQ RegisterRegister  Log inLog in
 {Forgotten your password?}Forgotten your password?  

Like
31622


The time now is Aug 17, 2017 16:24

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
The biggest nuggets.
  
  Index -> Exceptional finds
Like
19


View previous topic :: View next topic  
Author Message

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 11, 2016 02:06    Post subject: The biggest nuggets.  

Hi,
What is or what was the biggest nugget found in the world?

Here a nugget of 64.797 kg found in November 1943 in the Lukala River near Kamituga in South Kivu (R.D. Congo).
This nugget was considered the sixth biggest found in the world. What do you think ?
Roger.



013-Pépite_Lukala-001-C_R.jpg
 Locality:
Kamituga-Mobale Mine, Lukala River, Bukavu, South Kivu, Congo DR (Zaire)
 Dimensions: 45 cm high
 Description:
 Viewed:  8358 Time(s)

013-Pépite_Lukala-001-C_R.jpg


Back to top
Reply to topic Reply with quote
Like
4
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 11, 2016 02:17    Post subject: Re: The biggest nuggets.  

Here the plaster cast of a nugget of 64.797 kg found in November 1943 in the Lukala River near Kamituga in South Kivu (R.D. Congo). Reverse side view. The Great Lakes Mining Company made this mold and then it melted that big nugget.
It is harmful because it is a part of the heritage of humanity that has disappeared.
Roger.



014-Pepite_moulage_65kg-10781Bis.jpg
 Mineral: Gold
 Locality:
Kamituga-Mobale Mine, Lukala River, Bukavu, South Kivu, Congo DR (Zaire)
 Dimensions: 45 cm
 Description:
 Viewed:  8334 Time(s)

014-Pepite_moulage_65kg-10781Bis.jpg


Back to top
Reply to topic Reply with quote
Like
3
   

marco campos-venuti




Joined: 09 Apr 2014
Posts: 148
Location: Sevilla


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 11, 2016 05:02    Post subject: Re: The biggest nuggets.  

I'm not sure my cabinet would bear it!!
The problem of big nuggets is to find peoples with enough money for save it from melting.
I remember in 2010 when the Ausrox Nugget was found in Australia, it was saved just in time. It was finally brokered by Arkenstone and Ausrox that spend a huge amount of money.
It was on display at the 2011 Tucson Show where I took the pictures.
It weights 748 troy ounces that are about 23.26 kg.
Now it is in the Pinnacle Collection and exposed at the Victoria Museum.



IMG_1406 (Medium).JPG
 Mineral: Ausrox Gold Nugget at 2011 Main Show in Tucson
 Locality:
Western Australia, Australia
 Dimensions: 23.26 kg.
 Description:
 Viewed:  8232 Time(s)

IMG_1406 (Medium).JPG



IMG_1407 (Medium).JPG
 Mineral: Ausrox Gold Nugget
 Locality:
Western Australia, Australia
 Dimensions: 23.26 kg.
 Description:
 Viewed:  8262 Time(s)

IMG_1407 (Medium).JPG


Back to top
Reply to topic Reply with quote
Like
3
   

Tobi




Joined: 07 Apr 2009
Posts: 2445
Location: Good Old Germany


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 11, 2016 08:14    Post subject: Re: The biggest nuggets.  

http://www.discoverychannel.com.au/images/worlds-biggest-gold-nuggets/

The heaviest and largest gold specimen ever found was the Holtermann Nugget (named after the German miner Bernhardt Otto Holtermann) that was discovered in 19th century Australia ... you can find old images likes this on Google photo search: http://nla.gov.au/nla.pic-vn4728501-v

But the pure gold content was "only" between 50 and 60 kg, so it was NOT the largest pure gold nugget ever ;-)
Back to top
Reply to topic Reply with quote
Like
1
   

alfredo
Site Admin



Joined: 30 Jan 2008
Posts: 635
Location: New York


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 11, 2016 10:39    Post subject: Re: The biggest nuggets.  

There was an even bigger one: over 109 Kg nugget, with 72 Kg gold content: https://en.wikipedia.org/wiki/Welcome_Stranger
Back to top
Reply to topic Reply with quote
Like
1
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 13, 2016 02:45    Post subject: Re: The biggest nuggets.  

Hi,
I intend to talk about the biggest nuggets found in the Belgian Congo between 1930 and 1945. At this time Kivu was part of this vast country the Democratic Republic of Congo, colonized by King Leopold II of the Belgians (who donated afterwards to Belgium, before being returned to the Congolese people in 1960).

Several major mining companies exploited gold. This is the Great Lakes Mining Company, which found the biggest nugget of 64kg797 (picture already posted).
This nugget occupied in 1945 the 6th larger nuggets found in the world.
Passau (Geol.Ing.) tells its exact origin, located in the yards of Kalingi region (South mines) in the D 7 tributary of the river Lukala (South Kivu).
Note: If the polar coordinates found on his sketches match, it is difficult to match this sketch (with only rivers, and only one actual locality, Kamituga) with Google maps. The visualization of the rivers is difficult in a 'white' area (Google Maps), in full virgin forest (Google Earth).
Only two tributaries of the Congo River are visible, Elila south and Ulindi north, both from the North East of Lake Tanganyika.
Without any guarantees, I located the site of the Lukala NNE of Kamituga between Elila and Ulindi rivers. An area currently used is visible on Google, east Kamituga.
Kamituga is located 100 kilometres southwest of Bukavu (with N2 road).
I had the opportunity to shoot 6 plaster casts of these historical nuggets (Lab. Miner. University of Liege, B. Prof. Frederic Hatert) .Colors of these monsters (plaster cast) seem correct and true to the original nuggets.
Roger.
Back to top
Reply to topic Reply with quote
Like
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 13, 2016 03:36    Post subject: Re: The biggest nuggets.  

Pépite n° II (Passau)
Origin : Kamakundu river, Little Mobale). Extraction date : 1929.
Maximum dimensions: length, 22 cm; width 13.3 cm; height, 4.65 cm.
Weight : 3 kg. 322 (3 kg. 3895).
losses from melting: [208 gr. 9, i.e. 6,17 % ].
Content : [968 Au - 27 Ag].
Nugget plate, brown in the hollows, relief most excavated on the face photographed than on upside; fibrous appearance, relatively pronounced wear.



Pepite_II-10784_R.jpg
 Mineral: Gold (nugget)
 Locality:
Kamakundu River, South Kivu, Congo DR (Zaire)
 Dimensions: 3.3895 kg
 Description:
 Viewed:  7927 Time(s)

Pepite_II-10784_R.jpg


Back to top
Reply to topic Reply with quote
Like
2
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 14, 2016 05:19    Post subject: Re: The biggest nuggets.  

Pépite n° X - Passau.
Origin: Terrace of the small Mobale downstream of the confluence of the Kahosimira, South Kivu (DR Congo).
Extraction date: in Dec. 1935.
Maximum dimensions : length, 15,2 cm.; width, 13 cm.; height, 5,5 cm.
Weight : 4 kg. 4267 (4 kg. 425).
Losses from melting : 160 gr. 4, i.e. 4 %.
Content : 964 Au - 30 Ag.
Very nice nugget, and richly colored worn on the face was reminiscent of a sheep's head; worn and browned on the front face, excavated.



015-Pepite-#X_10788_R.jpg
 Mineral: Gold (nugget)
 Locality:
Petite Mobale River, Kahosimira River, South Kivu, Congo DR (Zaire)
 Dimensions: 4.4267 kg
 Description:
 Viewed:  7808 Time(s)

015-Pepite-#X_10788_R.jpg



016-Pepite-#X-opposé-10804_R.jpg
 Mineral: Gold (nugget)
 Locality:
Petite Mobale River, Kahosimira River, South Kivu, Congo DR (Zaire)
 Dimensions: 4.4267 kg
 Description:
Reverse side.
 Viewed:  7808 Time(s)

016-Pepite-#X-opposé-10804_R.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 15, 2016 09:56    Post subject: Re: The biggest nuggets.  

Pépite n° XII. — Origin : Little Mobale, at 110 m. upstream from the falls situated 350 m. the confluence with the great Mobale. Extraction date Feb.1933.
Maximum dimensions: length, 26.3 cm.; Width, 13.1 cm.; height, 9.05 cm.
Weight : 8 kg. 400 (8 kg. 3985).
losses from melting : 844 gr. 7, i.e. 10 %.
Content : 970 Au - 26,5 Ag.
Large nugget, highly burnished, high relief



018-Pepite-#XII_10792_R.jpg
 Mineral: Gold nugget
 Locality:
Petite Mobale River, Kahosimira River, South Kivu, Congo DR (Zaire)
 Dimensions: 8.3985 kg
 Description:
 Viewed:  7692 Time(s)

018-Pepite-#XII_10792_R.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

Roger Warin




Joined: 23 Jan 2013
Posts: 770


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 19, 2016 15:20    Post subject: Re: The biggest nuggets.  

From January 1940 through May 1945, it was further extracted by Mining Great Lakes Cy to the southern mines, sites in the Lukala:
26 nuggets of more than one kilogram, 9 weighing more than 5 kg. :
9343 kg, 5940 kg, 21,075 kg, 5428 kg, 13,765 kg, 6,300 kg, 17,011 kg, 9,035 kg, 17,583 kg.

Roger.



019-Pepite-#A_R.jpg
 Mineral: Gold
 Locality:
Lukala River, South Kivu, Congo DR (Zaire)
 Dimensions: 17.011 kg
 Description:
nugget #A
 Viewed:  7489 Time(s)

019-Pepite-#A_R.jpg



020-Nugget#B_10813_R.jpg
 Mineral: Gold
 Locality:
Lukala River, South Kivu, Congo DR (Zaire)
 Dimensions: 17.583 kg
 Description:
nugget #B
 Viewed:  7505 Time(s)

020-Nugget#B_10813_R.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

cptbtptp248




Joined: 08 Nov 2016
Posts: 3
Location: paris

View user's profile

Send private message

PostPosted: Nov 08, 2016 03:51    Post subject: Re: The biggest nuggets.  

What a wonderful find! My child and I both love outdoor pursuits. I decided to take him metal detecting with me. Now, this is an important lesson in what he does in science. Education is central to his growth. I wish I could teach him. Now I come to this forum. I want to grow up, too.
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> Exceptional finds   All times are GMT - 5 Hours
Page 1 of 1
    

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


All pictures, text, design © Forum FMF 2006-2017


Powered by FMF