See the related link for a photo.
Like Many metals it has alot to do with the geology of the ground where it is found, such as gold which can be black (oro preto) ect. If it is in crystal form it is in cube shaped, elongated cubed shape, cluster of cube shaped crystals connected. In bigger pieces it can look like silver, a black magnet (pt black) to red and so on. The biggest give away is it has a red tint or aura around it that will blur pictures, blur a 3x magnifying glass if held in the sun and look down the plain of a nice flat side. no it is not your eyes, the red aura has a distorting property. And no it is not something easily seen, but it's there. The last thing I can think of is the texture is close to gold I.E. stands out. As far as flour, black sands put them in something after dried that is water proof and does not soak up any water and do a specific gravity test on them. If the sands are weighing 13 or more specific gravity something not standard to most black sands is in them. Does not mean it is platinum or gold but worth checking out.
Can i see platinum in my gold pan
it looks like gun powder and gray to blue black sometimes. It also is shiny.
yes
Ore.
Raw platinum is a shiny, silver-white metal that is usually found in the form of nuggets or grains. It has a high luster and is very dense, making it a valuable precious metal. Platinum is often found mixed with other metals such as palladium and gold in its natural state.
yes the meaning of ore is raw metal
Ore is raw material, alloy is combination of metals
Iron ore.
Ore
bund
Smelting: Mined out of the ground, raw ore is a mixture of materials called ore proper and loose earth called gangue (waste). The ore proper is separated by crushing the raw ore are simply washing away the lighter soil. Breaking down the ore from its impurities is more difficult.
Uranium ore.
Ore
There is iron ore in England.