Yes it is
Sillimanite is an index mineral for high temperature and variable pressure metamorphism.
It is a medium-grade metamorphic rock with a preponderance of the platy mineral graphite.
2.75 - 3
The structure that a mineral forms is called a crystal.
yes
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Yes it is
Sillimanite is an index mineral for high temperature and variable pressure metamorphism.
The mineral with hardness 3 will get scratched.
Food grade mineral oil has been additionally refined to remove all of the carcinogenic agents, it is rated as safe for consumption. Plain mineral oil still has some chemical traces in it that have been shown to cause cancer in laboratory animals.
grade 3
Google: "manufacturers cosmetic grade mica". What a wonderful world we live in!
If you use a light grade of mineral spirits you can darken stone. However, make sure you apply it lightly.
It is a mineral that is put on the end of matches to make them burn.
It is a medium-grade metamorphic rock with a preponderance of the platy mineral graphite.
the most special mineral is gold because it makes people rich this was by a kid in grade 4 9 years old 2013