- published: 17 Apr 2015
- views: 108758
An ore is a type of rock that contains minerals with important elements including metals. The ores are extracted through mining; these are then refined to extract the valuable element(s).
The grade or concentration of an ore mineral, or metal, as well as its form of occurrence, will directly affect the costs associated with mining the ore. The cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a grade to be worth mining. Metal ores are generally oxides, sulfides, silicates, or "native" metals (such as native copper) that are not commonly concentrated in the Earth's crust or "noble" metals (not usually forming compounds) such as gold. The ores must be processed to extract the metals of interest from the waste rock and from the ore minerals. Ore bodies are formed by a variety of geological processes. The process of ore formation is called ore genesis.
An ore deposit is an accumulation of ore. Now this is distinct from a mineral resource as defined by the mineral resource classification criteria. An ore deposit is one occurrence of a particular ore type. Most ore deposits are named according to either their location (for example, the Witswatersrand, South Africa), or after a discoverer (e.g. the kambalda nickel shoots are named after drillers), or after some whimsy, a historical figure, a prominent person, something from mythology (phoenix, kraken, serepentleopard, etc.) or the code name of the resource company which found it (e.g. MKD-5 is the in-house name for the Mount Keith nickel ).
ORE 1 Latest Yiruba Nollywood Movie Starring Iyabo Ojo, Doris Simon
Minecraft: MINING ORE CHALLENGE [EPS9] [5]
If a New Ore was Added to Minecraft - Part 1
If a New Ore was Added to Minecraft - Part 2
Minecraft | ORE CREATURES MOD! (Shiny New Agressive Mobs!) | Mod Showcase
Ore Ajeji - Latest Yoruba Movie 2015 Drama
Minecraft: RANDOM ORE MOD (LUCKY ORE THAT CRAFTS UNBELIEVABLE ITEMS!) Mod Showcase
Minecraft: SO MUCH ORE CHALLENGE [EPS7] [9]
milder ore, proyecto ayacucho, waynos
Teri Ore - Rahat Fateh Ali Khan (720p Full Wide Screen)
Minecraft - How To Find Every Ore
Minecraft | FAKE ORE MONSTERS MOD! (Ores That Come to Life!) | Mod Showcase
Quattro ore con la musica dei Pooh
MILDER ORE : MegaMix HD - Primicias
Actors: Reid Bard (actor), Reid Bard (writer), Reid Bard (director), Reid Bard (editor), Andrew Fuller (actor), Patrick Higgins (actor),
Genres: Drama, Short,So light is her footfall
She walks like a bird
She's an angel
Such a familiar stranger
I wish I could help her
She's in danger
She's all alone alone alone alone alone alone
All alone alone alone alone
So light is her footfall
She moves like a ghost
And I lost her
In the mist of dawn
She's already gone
And I miss her
She's all alone alone alone alone alone alone
All alone alone alone alone
And I miss her
And I miss her
She's all alone alone alone alone alone alone
All alone alone alone alone
So light was her footfall
So light was her footfall
So light was her footfall