A mineral is any naturally-occuring solid with a defined chemistry and crystalline structure. A crystal is the physical representation of a mineral which is large enough to see, either with the naked eye or hand lens. When minerals are small and need to be seen with a microscope most people start calling them "grains" (ex: a quartz grain in thin-section), but this is not an absolute.
Borax crystals are specifically composed of the mineral borax, while other natural crystals can be formed from a wide variety of minerals such as quartz, calcite, or fluorite. Borax crystals have distinct properties and chemical composition that distinguish them from other natural crystals.
Most minerals form crystals.
Most minerals form crystals.
No, but stones and crystals are both minerals.
no
The only physical property that can be used to distinguish between pyrite and chalcopyrite, assuming both minerals are the same color, is hardness. Pyrite is harder than chalcopyrite, so a scratch test with a harder material like a knife or fingernail can help differentiate between the two minerals.
Minerals
A mineral is a naturally occurring inorganic substance with a specific chemical composition and physical properties. A crystal is a solid material with a repeating geometric pattern. All crystals are minerals, but not all minerals are crystals. Minerals can exist in both crystalline and non-crystalline forms. Crystals have a more ordered and symmetrical structure compared to minerals, which can have a variety of structures.
most minerals have a distinctive crystal arrangement. those minerals that do not have their atoms arranged in crystals are called amorphous minerals.
how can you distinguish between them
There are different minerals in different crystals which make them different colors. And "imperities"
Yes, in fact that's how a lot of crystals are formed.