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Gypsum

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What mineral is very easily scratched and found in drywalls of houses?

Gypsum (number 2 on the Moh's Hardness Scale)


What unknown mineral is found to scratch apatite and to be scratched by corundum?

The unknown mineral would be topaz. Topaz lies between apatite and corundum on the Mohs scale, making it capable of scratching apatite and being scratched by corundum.


What rock is soft enough to be scratched by a nail?

Rocks that mostly contain minerals like mica, gypsum, and talc can be scratched by a fingernail.


What is fluorite on the mohs hardness scale?

Fluorite is the number 4 mineral on the Mohs scale of mineral hardness, above calcite and below apatite.


What is a shiny mineral that occurs in sheets?

Mica is a shiny mineral that occurs in sheets. It is composed of thin, flat sheets that can easily be peeled apart. Mica is commonly found in igneous and metamorphic rocks.


Where is the walfenite mineral found?

This mineral was found in San Francisco,California


Is helium found as a native mineral?

Helium is found as a mono atomic element. It is not found as a mineral.


What three question would you ask about minerals?

For simple identification purposes you should ask: what is the hardness of the mineral compared to other minerals; what is the color (streak) of the mineral when scratched on an unglazed porcelain ceramic surface; and does the mineral react with dilute hydrochloric acid or vinegar, indicating whether or not it's a carbonate mineral. Other identifiers would be the mineral's specific gravity, lustre, and crystal classification.


Where is the California state mineral found?

where is the California s state mineral found


Why is platinum found as a metal not an ore?

Platinum is found in its metallic form because it is unreactive and does not easily combine with other elements to form compounds. This results in it being found naturally as pure metal in deposits, rather than as an ore mineral that needs to be extracted and refined.


How is the mineral diamond formed?

where is mineral diamonds found


Why do rocks have different hardness?

Rocks have different hardness because of variations in their mineral composition and the way those minerals are bonded together. Hardness is typically measured using the Mohs scale, which ranks minerals from 1 (softest) to 10 (hardest) based on their ability to scratch or be scratched by another mineral. Rocks with higher mineral densities or stronger atomic bonds tend to be harder.