What is billon alloy made of?
Billon /ˈbɪlən/ is an alloy of a precious metal (most commonly silver, but also gold) with a majority base metal content (such as copper). It is used chiefly for making coins, medals, and token coins. The word comes from the French bille, which means “log”.
How is electrum made?
D. Electrum is a naturally occurring alloy of gold and silver with a small amount of other metals. The man-made alloy of gold and silver is chemically similar to electrum but usually is called green gold.
Can any metals alloy?
An alloy may be a solid solution of metal elements (a single phase, where all metallic grains (crystals) are of the same composition) or a mixture of metallic phases (two or more solutions, forming a microstructure of different crystals within the metal).
What is billon antoninianus?
The antoninianus, or pre-reform radiate, was a coin used during the Roman Empire thought to have been valued at 2 denarii. It was initially silver, but was slowly debased to bronze with a minimal silver content.
What does billon mean?
1 : gold or silver heavily alloyed with a less valuable metal. 2 : an alloy of silver containing more than 50 percent of copper by weight.
What is electrum worth?
Electrum was a naturally occurring silver-gold alloy with half the value of pure gold: 1 electrum piece (ep) was worth 50 copper pieces (cp), 5 silver pieces (sp), 1/2 of a gold piece (gp), or 1/20 of a platinum piece (pp).
Where is electrum found?
Source of Electrum This alloy of gold is naturally found in gold and silver deposits with high silver contents. It is found in places like North and South America, Europe and New Zealand.
What are the 2 types of alloys?
There are two main types of alloys. These are called substitution alloys and interstitial alloys. In substitution alloys, the atoms of the original metal are literally replaced with atoms that have roughly the same size from another material. Brass, for example, is an example of a substitution alloy of copper and zinc.
Are Roman coins worth money?
Most of them are valued today at 20-50 $ a pieces of medium condition and not so rare. In some cases, for example a rare emperor or rare reverse can have a high value, around 1000 $ or even higher. Usually the Consecratio theme or the family coins, with more than one member are rare.
How large exactly is a billion?
1,000,000,000
A billion is a number with two distinct definitions: 1,000,000,000, i.e. one thousand million, or 109 (ten to the ninth power), as defined on the short scale. This is now the meaning in all English dialects. 1,000,000,000,000, i.e. one million million, or 1012 (ten to the twelfth power), as defined on the long scale.
How much is a billion in numbers?
you get 1,000,000,000 = one billion! That’s a lot of zeros! Astronomers often deal with even larger numbers such as a trillion (12 zeros) and a quadrillion (15 zeros).
What kind of metal is a Billon made of?
Billon is an alloy of a precious metal (most commonly silver, but also mercury) with a majority base metal content (such as copper). It is used chiefly for making coins, medals, and token coins. The word comes from the French bille, which means “log”.
What kind of alloy is billon in DF?
This article is about the current version of DF. Billon is an alloy of equal parts silver and copper. Historically, billon was used to mint coins, but it remains to be seen if billon coins will be useful when the dwarven economy is re-developed.
Where did the use of billon coins come from?
The use of billon coins dates from ancient Greece and continued through the Middle Ages. During the sixth and fifth centuries BC, some cities on Lesbos used coins made of 60% copper and 40% silver.
How many billon bars can you make at smelter?
Two billon bars can be made at a smelter from 1 silver bar and 1 copper bar, which does not create an increase in value. However, eight billon bars can be created by smelting 1 silver-bearing ore and 1 copper-bearing ore.