Want this question answered?
One way would be to perform a streak test by sliding the sample across an unglazed tile with a little bit of pressure. Gold will have a gold colored streak and pyrite will have a greenish black streak. After exposure to flame, pyrite will have a slight sulfur smell which gold will not. == == == ==
Gold will have a gold metallic streak, and Fool's Gold (pyrite) will have a greenish black streak.
Yellow.
The streak is the mineral in a powdered form from abrasion with the hard, slightly textured surface of an unglazed porcelain streak plate. The streak color may differ from the color observed in a specimen. Coloration of mineral specimens is sometimes due to impurities. In a powdered form, the impurities are not abundant enough to cause coloration in the streak, thus revealing the true color of the mineral. == ==
When you scratch off a rock on an object and it leaves color. if it doesn't leave color then it does not have streak.(earth science)
Hardness alone is not a good way to identify a mineral, other properties such as streak color, cleavage, opacity, ect also need to be taken into consideration. There is no "quick way" to properly identify a mineral.
Hardness, luster, and scratch color help narrow down the possibilities . . . specific gravity and chemical analyses follow. As an example, gold and pyrite look about the same - both have a somewhat shiny luster. The streak color, though is black for pyrite and yellowish for gold. Hardness of pyrite is 6-something on the hardness scale, and gold is around 2.5, which is much softer.
.A Ruby.A Gold Nugget.Coal.Brass.Obsidian.Basalt.Fluorite
I would say streak (Is that a physical property?). Gold has a yellow streak, pyrite a very distinguishable greenish-black to brownish-black. [A streak is obtained by scratching a mineral (or rock) on a streak plate (a white plate made of porcelain (floor tile-like), with a hardness of around 6.5 (Mohs scale)] If streak is not a physical property I would say hardness: gold has a hardness of 2.5, pyrite of around 6. I'm sure there are other usuable physical properties, as density for ex.
When dragged across a streak plate, gold will leave a yellow streak, pyrite will leave a greenish-black streak. It is one way of differentiating gold from pyrite.
'streak' is the color that a mineral will leave when rubbed on a piece of unglazed porcelain. It is used to help identify the mineral. For example, arsenopyrite looks very similar to gold, but has a dark grey or black streak. Gold has a yellow streak.
One way would be to perform a streak test by sliding the sample across an unglazed tile with a little bit of pressure. Gold will have a gold colored streak and pyrite will have a greenish black streak. After exposure to flame, pyrite will have a slight sulfur smell which gold will not. == == == ==
Pyrite and gold are similar in color, and both are relatively heavy when compared to other minerals and rock. Pyrite fractures when hit with a hammer. Gold, however, is malleable. Pyrite leaves a brownish-black streak on a streak plate. Gold leaves a gold-colored streak. Gold is nearly 4 times as heavy as pyrite. Gold is much softer than pyrite on the Mohs hardness scale.
Gold will have a gold metallic streak, and Fool's Gold (pyrite) will have a greenish black streak.
Yellow.
Gold will have a yellow metallic streak, pyrite will have a greenish-black streak.
To tell the difference between pyrite and real gold, you can check the color and shape of the ore. Gold and pyrite have a yellowish color but pyrite has a pale and brassy color compared to gold. Pyrites are shaped more like crystals while gold tends to form as a nugget. Another difference between the two is that gold can be scratched with a pocketknife while pyrite cannot be scratched. You also can use the malleability and odor tests.