Reply Sat 21 Nov, 2009 09:54 pm
The only gold coin I have in my possession (from my mom) is a 1923 english gold sovereign that I put on a chain for lady Diane to wear.
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Reply Sat 21 Nov, 2009 09:55 pm
I have no idea where the rest of my mom's collection is but I do remember one Italian gold coin that was quite large but so very thin it was hard to hold without bending it.
Reply Sat 21 Nov, 2009 10:03 pm
Almost every Italian state issued its own form of a gold coin in the 1800's. The big ones were the "DOPPIA la ZECCHIO" "THe BIG Double ducats" I recall seeing one of those mamas, thoe were ones that people would bite to test that they were indeed gold.

Ill bet thyre worth a ducat or two.
0 Replies
Reply Sun 22 Nov, 2009 07:02 am


Meteorites could be source of world's precious metals, study finds

Rare and precious metals such as platinum, gold and iridium could have been
brought to Earth by iron meteorites, according to new research by Dr Gerhard
Schmidt of the University of Mainz in Germany.

Dr Mainz is due to present his results at the European Planetary Science
Congress (EPSC), which is taking place in Münster, Germany, from 21 to 26

Gold, platinum, iridium, palladium and rhodium are examples of Highly
Siderophile Elements (HSEs), metals that tend to bond with solid or molten
metallic iron. When the Earth was still forming, it heated up, and the HSEs and
other heavy elements were stripped from the surface of the young planet into its
iron- and nickel-rich core.

This raises the question of where the HSEs found in the crust came from. One
theory is that meteorite impacts delivered these elements to the earth's surface
after the core had formed.

Over the course of 12 years, Dr Schmidt and his colleagues analysed HSE
concentrations at a number of meteorite impact sites and in the earth's crust
and mantle at other sites. They also studied samples from the surfaces of the
moon as well as Martian meteorites.

'A key issue for understanding the origin of planets is the knowledge of the
abundances of HSE in the crust and mantle of the Earth, Mars and Moon,'
explained Dr Schmidt. 'We have found remarkably uniform abundance distributions
of HSE in our samples of the Earth's upper crust. A comparison of these HSE
values with meteorites strongly suggests that they have a cosmochemical source.'

Dr Schmidt's analyses revealed that the HSE levels found in the earth's crust
are much higher than those found in stony meteorites called chondrites, which
were formed form the material present in the early solar system.

However, the HSE ratios found are very close to those found in iron or
stony-iron meteorites. These larger asteroids generated enough internal heat to
form a molten metal core. Dr Schmidt has calculated that around 160 metallic
asteroids of approximately 20 km in diameter would be enough to provide the
levels of HSEs found in the earth's crust today. Furthermore, it seems that a
similar process could have been taking place on Mars.

'The first meteorite to be found on Mars was an iron meteorite, discovered by
the Opportunity rover in January 2005,' commented Dr Schmidt. 'Analysis of the
Nahkla, Shergotty and Zagami Martian meteorites strongly supports a genetic link
with certain iron meteorites.'

The EPSC is organised by the EU-funded Europlanet initiative, which aims to
foster cooperation in European planetary science research, enhance Europe's
competitiveness in the field, promote European participation in major planetary
exploration missions and improve public understanding of planetary science.
Europlanet is financed under the 'Research infrastructures' Activity area of the
Sixth Framework Programme (FP6).

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Reply Sun 22 Nov, 2009 07:21 am
Interesting hypothesis. This one had been developed several times in the past to xplain elements heavier than at wt 40. The known distribution of gold recognizes that over 70% of known distribution is from the old Gondwanaland portion of the ancient earth
Reply Sun 22 Nov, 2009 04:38 pm
The earliest uses of gold come from evidence from the BAlkans (6000BC) and earlier in the Mehrgahr plain and the Deccan basalt plain (7700BC). Archeologists believe that, since copper was found as "native" or , relatively pure deposits in volcanic seams, gold also occured in these deposits. Gold was easily separated from copper by smelting (if the deposits were sufficiently pure). So several areas where funerary gold beads and thinly worked sheets were used as decorative pieces. The advance of the "copper Age" at the end of the NEolithic ws a gradual spread throughout the area from East Asia to Africa and into the BAlkans.
Reply Sun 22 Nov, 2009 05:45 pm

canada claims to have isued the largest - and most expensive - goldcoin :



( by special order only - NO COD , PLEASE ! )
0 Replies
Reply Sun 22 Nov, 2009 05:51 pm
to help you estimate your worth : GOLD PRICE CHART

0 Replies

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