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Common Blue Violet (Viola sororia) color variant. Viola sororia is a short-stemmed, herbaceous perennial plant that grows in well-drained and shady habitats. [ 5 ] This 15–25 centimeters (6–10 in) wide violet has glossy, heart-shaped leaves and are topped with purple flowers with white throats. The lower three petals are hairy and the stem ...
Electrum. Electrum is a naturally occurring alloy of gold and silver, [1][2] with trace amounts of copper and other metals. Its color ranges from pale to bright yellow, depending on the proportions of gold and silver. It has been produced artificially and is also known as "green gold". [3]
On 19 November O.S. (1 December N.S.) 1815, the law regarding the monetary system of Congress Poland (in Russia) was passed, which pegged the złoty at 15 kopecks (0.15 Imperial roubles, or almost 2.7 g fine silver) and the groszy at 1 ⁄ 2 kopeck, and with silver 1, 2, 5 and 10 złotych coins issued from 1816 to 1855.
The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze.
The metals and common colours of heraldry. One system of hatching is shown at right. Tinctures are the colours, metals, and furs used in heraldry.Nine tinctures are in common use: two metals, or (gold or yellow) and argent (silver or white); the colours gules (red), azure (blue), vert (green), sable (black), and purpure (purple); and the furs ermine, which represents the winter fur of a stoat ...
Bullion. Bullion is non-ferrous metal that has been refined to a high standard of elemental purity. The term is ordinarily applied to bulk metal used in the production of coins and especially to precious metals such as gold and silver. It comes from the Anglo-Norman term for a melting-house where metal was refined, and earlier from French ...
Byzantine coinage. Byzantine currency, money used in the Eastern Roman Empire after the fall of the West, consisted of mainly two types of coins: gold solidi and hyperpyra and a variety of clearly valued bronze coins. By the 15th century, the currency was issued only in debased silver stavrata and minor copper coins with no gold issue. [1]
The Krugerrand (/ ˈkruːɡərænd /; [1] Afrikaans: [ˈkry.ərˌrant]) is a South African coin, first minted on 3 July 1967 to help market South African gold and produced by Rand Refinery and the South African Mint. [2][3] The name is a compound of Paul Kruger, the former President of the South African Republic (depicted on the obverse), and ...