The color of the powder left behind on the streak plate is the mineral's streak. The streak and color of some minerals are the same. For others, the streak may be quite different from the color, as for example the red-brown streak of hematite, often a gray to silver-gray mineral.
geology.csupomona.edu/alert/mineral/streak.htm geology.csupomona.edu/alert/mineral/streak.htm
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Information on the mineral property of streak. A service of The Mineral and Gemstone Kingdom. ... When testing for streak, the mineral must be crushed to determine the color of its powder. The color of the powder is the color of the streak. Instead of actually crushing a mineral to determine the streak, it is much simpler...
www.minerals.net/resource/property/streak.htm www.minerals.net/resource/property/streak.htm
Secondly, a mineral's structure and/or coatings can affect the outward color of a mineral and the streak in many ways is the true color of the mineral. Pyrite (known as "Fool's Gold") is always brassy yellow when found in crystals, even broken crystals, of any size;
www.galleries.com/minerals/streak.htm www.galleries.com/minerals/streak.htm
When a mineral is rubbed against a piece of porcelain tile, a streak of powered mineral remains on the tile. This streak can be an important clue because the color may vary from the color seen on the surface of the specimen.
www.k12.nf.ca/sjis/mineral_exploration/streak.html www.k12.nf.ca/sjis/mineral_exploration/streak.html
How to Perform a Mineral Streak Test. A streak test is one tool that geologists use to determine the identity of a mineral. The “streak” is the color of the mineral in powdered form. Some minerals will have a streak color that is... ... eHow Article: How to Perform a Mineral Streak Test...
www.ehow.com/how_5252516_perform-mineral-streak-test.ht... www.ehow.com/how_5252516_perform-mineral-streak-test.html
The streak of a mineral is the color it displays in finely powdered form. The streak maybe completely different from the color of the hand specimen. One of the simpliest ways of determining the strak of a mineral is to rub a specimen across a piece of unglazed porcelain known as a streak plate.
academic.brooklyn.cuny.edu/geology/grocha/mineral/strea... academic.brooklyn.cuny.edu/geology/grocha/mineral/streak.html
When a mineral is rubbed firmly across an unglazed tile of white porcelain (a streak plate), it leaves a line of powder. This is called the streak. The color of the streak is always the same, whether or not the mineral has impurities.
www.sdnhm.org/kids/minerals/howto-streak.html www.sdnhm.org/kids/minerals/howto-streak.html
Streak (mineralogy) - Wikipedia, the free encyclopedia
The streak (also called powder color ) of a mineral is the color of the powder produced when it is dragged across an unweathered surface. Unlike the apparent color of a mineral, which for most min...
en.wikipedia.org/wiki/Streak_(mineralogy)
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