More details would be needed.
teel
magnetic
Copper was one of the first metals to be discovered, possibly by anchient potters whose furnaces were hot enough to produce copper from the ore malachite.
to extract , as in heating ore to remove iron
They dig it or use some simple machine to dig it out.
Well, three different countries use the Ore as a denomination. Without more information I cannot tell which country minted your coin. Denmark: 1 Ore, 1876 $400USD in Fine Condition, $1500 in Uncirculated. Norway: 1 Ore, 1876 $5USD in Fine, $80 in Uncirculated. Sweden: 1 Ore, 1876 $25USD in Fine, $200 in Uncirculated. Remember, rarity and condition are key in coin values.
Well, "tretio ore" means "thirty ore" in Swedish. The number refers to how much ore is used in each coin, while the actual word "ore" is referring to the coin itself. The higher the number, the more costly the coin is. There are also "tjugo ore" (twenty ore) coins that I know of, and I'm sure there is more out there than just that. (Oh! And, as far as Google and I are concerned, there is nothing in existence that matches "trettio ore"!)
What you have is a Swedish 50 ore coin. One Swedish krona is 100 ore, but all ore coins have since been discontinued and demonetized. Based on current exchange rates (April 2018), it would be worth six cents in US dollars.
The valuation of a 1878 5 ore coin "Brodrafolkens Val" can vary depending on its condition, rarity, and current demand in the market. As of now, a rough estimate would be around $10 to $30 USD for a circulated coin. However, for a well-preserved or rare piece, it could be worth more to collectors. It would be best to consult with a coin appraiser or numismatist for a more accurate valuation.
$2.94
about 5 cents
Its not a coin, it's a chocolate coin or bisque coin ore something. You will find it on the food store :-D
About 7¢
The value of a Swedish 5 ore coin dated 1750 in very good condition can vary, but generally, it could be worth between $10 to $50 to a collector. Rare or high-quality versions of the coin may fetch higher prices. We recommend consulting with a coin expert for a more precise valuation.
You didn't state what country the coin is from, but an ore is 1/100 of a crown in the Scandinavian countries. However, regardless of which country, the value of their crowns is far less than $1 so a modern 25-ore coin is only worth somewhere between a nickel and a dime depending on where it came from.
You have a coin from Denmark issued under the reign of King Christian the 9th. He reigned from 1863 to 1906. Value depends on the year (in small numbers below and to the left of the big "C" on the front of the coin) and the condition of the coin, but could be several dollars.
0 kronor. It is no longer in use.