copper
ambot
No. It is a carbohydrate. Salt would be an example of a mineral.
calcite
galena
The ruby is a variety of the mineral corundum, so the ruby is indeed a mineral.
An example of an inorganic mineral is quartz.
Calcite is an example of a carbonate mineral.
Trace elements in a mineral can indeed affect its color and value. For example, the presence of chromium can give a mineral a red color, like in rubies. Additionally, certain rare trace elements can increase the value of a mineral due to their rarity and unique coloring effects.
Sharp sand is an example of a silicate mineral.
no
ambot
salt
No. A mineral must be solid to be a mineral. For example, liquid water is not a mineral. Frozen water, or ice, is a mineral.
No. It is a carbohydrate. Salt would be an example of a mineral.
Amber is an example of a gem that is not a mineral. It is organic in origin, formed from the hardened resin of ancient trees, rather than being a crystalline mineral.
Copper.
calcite