0
What else can I help you with?
What colour and streak does Feldspar have?
Feldspar can be a variety of colors: clear, gray, white, tan, pink, brown, or red.
Which is an example if a mineral whose streak cannot be determined with a porcelin streak plate?
Hematite, gold, feldspar or magnetite
Does gabbro have a streak?
Gabbro does not have a streak because it is a coarse-grained rock made up of minerals like plagioclase feldspar and pyroxene that are harder than the streak plate. As a result, gabbro does not leave a streak when rubbed on a streak plate.
What streak color does pink granite have?
Pink granite typically has a white or light gray streak. The streak color is determined by the mineral composition of the rock, and in the case of pink granite, the dominant minerals such as feldspar and quartz contribute to this lighter streak. This characteristic helps in identifying the rock and distinguishing it from other types of granite.
What would happen if you rubbed a piece of fluorite against a piece of feldspar?
If you rub a piece of fluorite against a piece of feldspar, you would likely observe that the fluorite leaves a streak on the feldspar due to its lower hardness on the Mohs scale. Fluorite has a hardness of 4, while feldspar ranges from 6 to 6.5, meaning feldspar is harder and would not be scratched by fluorite. The interaction may produce some fine dust from the fluorite, but it would not result in significant abrasion of the feldspar.
What is the streak color of a granite rock?
Ah, granite is a beautiful rock with streaks that can vary in color. The streak color of granite is typically white or gray, reflecting the minerals like quartz and feldspar found in the rock. Remember, each piece of granite is unique, just like you are, with its own special patterns and colors.
What is the streak of diorite?
Diorite typically forms long, continuous mineral bands that run parallel to each other. This streak appears as a mottled or speckled pattern due to the interlocking crystals of feldspar, hornblende, and biotite within the rock.
What is the Streak for granit?
The "Streak" for granite refers to the color of the powder left behind when granite is scratched against a hard surface, typically a porcelain tile. Granite generally has a white or gray streak due to its mineral composition, which includes quartz and feldspar. This property can help in identifying the mineral content of the granite. However, streak is not always a definitive test for granite since it is often used more effectively for softer minerals.
What stone is whitish grey with nonmetallic luster that leaves a colorless streak?
The stone is likely to be gypsum. Gypsum is a soft mineral that is commonly found in sedimentary rock formations. It has a whitish grey color, a nonmetallic luster, and leaves a colorless streak when scratched against a surface.
What is the streak of sandstone?
Rocks are not considered to have a streak, as they may consist of several minerals. In the case of sandstone, the rock could be composed of feldspar, quartz, glauconite, and other minerals. Minerals in solutions can penetrate and stain the sandstone as well and affect the attempted streak test.
What is the fracture of feldspar?
Feldspar's fracture is brittle
What is feldspar fracture?
The fracture of feldspar is conchoidal or brittle.
