not at the same temperature
Not exactly sure what you mean...do you mean "true or false: a given mineral can have varying densities?" If you do mean that, than the answer is true.
That is not true. Mineral EXIST therefore they "are".
True. Bowen's reaction series is a concept in geology that predicts the order in which certain minerals crystallize from a cooling magma based on their melting points. This series helps to explain how different mineral grains of varying sizes form as the magma cools.
The powder indicates the true color of the mineral and is an aid in mineral identification. That can also be called a streak.
The color of the powdered form of a mineral is called
This is true by definition.
True. In general, a mineral can scratch any mineral that is softer than itself according to Mohs Scale of Mineral Hardness. This means that a mineral with a higher number on the scale can scratch a mineral with a lower number.
No, it is not because it is organic.
No, luster refers to the way light interacts with the surface of a mineral, like metallic or non-metallic. The true color of a mineral is determined by its inherent chemical composition.
It is true that if you are deficient in a certain mineral you may have an enhanced ability to taste that mineral, and it will taste good.
Glass is not a true mineral. Although it is solid and formed in nature, it does not have a consistent chemical composition or crystal structure, which are defining characteristics of minerals.
Yes, it is true.