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Explain how you could estimate the hardness of a mineral that does not appear on the mohs scale?
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What color is the mineral quartzite?
Quartzite can appear in many colors.
Drawn a simple diagram to explain how the moons could be seen from Jupiter and explain which moon would appear brightest?
a
What kind of minerals are in a book?
Mica minerals often appear in 'books' which are stacks of sheet-like mineral crystals.
In multiple-point perspective why do the vanishing points not appear on the canvas itself?
The image would appear distorted and not realistic
What is quartz?
Quartz is a naturally occurring silicate mineral composed of silicon dioxide (SiO2). Its hardness is 7 on the Mohs scale and it is in the trigonal crystal system. Quartz possesses a glassy luster and does not exhibit cleavage. The average specific gravity of quartz is 2.62. Quartz can be found in all three rock types, igneous, metamorphic, and sedimentary. Quartz has a white streak, but specimens can be appear colored by impurities or exposure to heat or radiation to hues of white, pink, red, orange, yellow, blue, green, black, smokey, milky, or purple.Quartz is a mineral, chemical composition of silicon dioxide, one of the most common minerals on the planet.
Can you explain why color is not a reliable method for identifying a mineral?
Colors are not a reliable method for identifying a mineral because different minerals can have the same color. Take Calcite, Halite and Gypsum for example. At first glance, all three of them appear to be the same mineral. All three of them even have the same streak and luster. However, they all have a different hardness. Calcite has a hardness of three, Halite has 2.5 and Gypsum has 2. Halite is made out of Sodium Chloride, but I wouldn't recommend tasting your mineral samples.
What mineral can scratch feldspar and is nonmetallic and white?
Chalcedony and corundum can both appear in white forms and have a Mohs hardness greater than most feldspars.
If a mineral has no streak is it metallic?
When identifying minerals, having no streak is a property of hardness. A streak plate has a hardness of ~7(Moh's Scale). Thus any mineral having a hardness greater than 7 will have no streak.Metallic is the description of luster. Or the general appearance of a mineral surface in reflected light.If you were refering to the mineral having metal elements in it, streak is actually very useful for identifying them. Many minerals that are composed of non-metals have a white streak which can appear to be no streak, however there are also many minerals with no streak which are composed of non-metallic minerals (Diamond).
What is a large mineral that is chrystal with brilliant color?
The sparkle is the reflection of light off the mineral crystal faces or cleavage surfaces.
If a mineral reflects very little light what kind of luster does it have?
Well, I think a mineral that is crystalline reflects the light only by total internal reflection in air medium. Hence, even if it is a black mineral, it can still appear shiny. So, the mineral should still appear lustrous but may appear that it is being seen in a low light..
What color is the mineral quartzite?
Quartzite can appear in many colors.
Do mineral crystal tend to appear in one of the six well?
yes
What are tonsoliths?
Tonsoliths are small mineral stone-like accumulations that appear in the tonsils.
Can the mineral grains in a metamorphic rock be flattened?
Yes, and they often are, and appear as foliations.
Is rose quartz a rock or a mineral?
Rose quartz is actually a silicate mineral that may appear in metamorphic, sedimentary, and igneous rocks.
Do mineral crystals tend to appear in one of the six well defined shapes?
Yes
Is cotton a mineral?
No, a mineral is generally an impure compound as it is found in nature
