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What mineral scratches quartz but not gypsum and is green in color?
Wiki User
∙ 10y ago
There is no answer to your question, because anything that will scratch quartz will also scratch gypsum.
Wiki User
∙ 10y ago
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Is amethyst related to rocks and minerals?
Amethyst is the purple variety of quartz. Quartz is Silicon Dioxide SiO2. The color comes from trace elements of manganese/Iron Oxide Fe2O3. To get the best color and best uniform color amethyst is heated.
Why cant the mineral quartz be classified based on color alone?
you might make an incorrect identification
Why is color the least reliable diagnostic mineral property?
Color is the least reliable diagnostic mineral property because many minerals come in different varieties. For instance, amethyst and smoky quartz are all forms of quartz. Therefore, color may hint at the type of mineral but should be used in conjunction with other tests such as hardness and crystal form.
Why is the color of mineral not a reliable test test for the identity of the mineral?
Because many different minerals may look the same, Like quartz and diamond, they are the same color, clear, but are very different minerals.
What mineral is most like quartz?
Topaz is very much like quartz. They both can be found naturally in any color. They're both harder than glass. Topaz is, however, a little bit harder than quartz and will scratch quartz.
What is gymsums color?
Gypsum is a white or colorless mineral.
Is amethyst related to rocks and minerals?
Amethyst is the purple variety of quartz. Quartz is Silicon Dioxide SiO2. The color comes from trace elements of manganese/Iron Oxide Fe2O3. To get the best color and best uniform color amethyst is heated.
What is a characteristic that depends on which parts of the visible light spectrum are reflected from a mineral?
the mineral's "color"
What minerals make gypsum?
Gypsum is a very soft mineral composed of Calcium Sulfate dihydrate, it can be whiteish grey to a pinkish color
Why are streak plates used to test minerails?
Scratching a mineral across a streak plate will result in a streak which represents the true color of a mineral without impurities or inclusions that can influence a particular specimen's color. The mineral quartz can appear in a wide variety of colors, but the streak of any colored quartz specimen will still be white. The 'streak' color is one characteristic of a mineral which will aid in its identification.
Why cant the mineral quartz be classified based on color alone?
you might make an incorrect identification
What gives quartz sandstone its color?
Pure quartz is a colorless mineral, and so a pure quartz sandstone will appear white due to multiple reflections and refractions between grains. However, impurities in the sandstone may give it some other color. What color it turns out as depends on the impurities. For example, iron oxide will produce a red sandstone.
Why is color the least reliable diagnostic mineral property?
Color is the least reliable diagnostic mineral property because many minerals come in different varieties. For instance, amethyst and smoky quartz are all forms of quartz. Therefore, color may hint at the type of mineral but should be used in conjunction with other tests such as hardness and crystal form.
What mineral has a hardness of 7 is red no streak color and a specific gravity of 2.65?
It is definitely a form of the mineral quartz, maybe jasper or carnelian.
What color is the gypsum rock?
the color for the gypsum rock is lik ewhite
Why is the color of a mineral not a reliable test of the identity of the mineral?
Because many different minerals may look the same, Like quartz and diamond, they are the same color, clear, but are very different minerals.
Why is the color a mineral not a reliable test for the identity of the mineral?
Because many different minerals may look the same, Like quartz and diamond, they are the same color, clear, but are very different minerals.
