The smore the merrier
Kyanite!!!
Kyanite
Kyanite is a polymorph with two other minerals: Andalusian and sillimanite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Kyanite has a nearly unique characteristic in that it has a wide variation in hardness in the same crystal face. The hardness of kyanite is approximately 4.5 when scratched parallel to the long axis of the crystal and approximately 6.5 when scratched perpendicular to or across the long axis. Other minerals usually have variable hardness on different crystal faces due to a different concentration and orientation of the atoms in the structure. Diamond is another such mineral, a fact gem cutters use to their advantage.
Other minerals
Fluorite
Fluorite, also known as The Most Colorful Mineral In The World, is a beautiful mineral. It comes in many colors. Starting from most common color to least common color, we have purple, blue, green, yellow, colorless, brown, pink, black, and reddish orange. Fluorite is so gorgeous, especially in the rare colors, that it is in high demand. Now, most Fluorite minerals are just one color. But, there are a few that are very unique. Some, not a lot, but some have more than one color. They can have up to five colors in just one mineral. The colors are placed in bands and zones according to the shape of the mineral. You see the different color in the sense that it looks like a certain color crystal within another. It is absolutely gorgeous. A few more cool things about fluorite is that 1. It is fluorescent. It can have up to four different fluorescent colors in just one mineral. 2. it is also thermoluminescence. This means that it can glow when it is heated. Sadly, this is very rare in most fluorite minerals. This mineral has a vitreous luster, and can be transparent or translucent. It gives a white streak. so, to conclude. If you have an eye for beauty and design, this is your mineral right here ! Fluorite, it's the way to go.
Graphite
Graphite is a polymorph of the element carbon. Diamond is another polymorph. The two share the same chemistry, carbon, but have different structures and different properties. Graphite is so smooth not like diamond. Graphite named by Abraham Gottlob Werner. In ancient Greek “Graphite” mean write/draw because it is the mineral used for pencil lead. Graphite has a sheet like structure where the atoms all lie in a plane and are only weakly bonded to the graphite sheets above and below. It is the weakly bonded sheets that slide by each other to yield the slipperiness or softness. Yet when those sheets are rolled up into fibers, and those fibers twisted into threads, the true strength of the bonds becomes apparent. The threads are molded into shape, and held in place by a binder. Single sheets of graphite are sometimes called Graphene.
Pyrite
Pyrite, which is known as “fool’s gold” always gets mistaken for gold because of the same color and shape. This mineral is known for having a beautiful luster and interesting crystals, it is amazing that you can find that mineral almost in every style environment. Pyrite’s structure is similar to galena’s structure because of the formula PbS. The difference is that the single sulfur of galena is replaced by a pair of sulfurs in pyrite. Pyrite, even though called “fool’s gold”, does contain a high percentage of iron and has never been used for its iron. The iron ore for pyrite are hematite and magnetite. If ores ever became scarce, then pyrite would be a good source for iron. Some descriptions about pyrite would be its color gold, its luster is metallic, its hardness is almost right in the middle at 6 – 6.5, its streak is dark green and its tenacity is brittle (which means it can break easily). Pyrite has the same formula as the rarer mineral Marcasite (FeS2), but it crystallizes differently and in a different system.
Peridot
Peridot is said to host magical powers and healing properties to protect against nightmares and to bring the wearer power, influence, and a wonderful year. As peridot is a gemstone that forms deep inside the Earth and brought to the surface by volcanoes, in Hawaii, peridot symbolizes the tears of Pele, the goddess of fire and volcanoes. Today, most of the peridot supply comes from Arizona; other sources are China, Myanmar, and Pakistan. This gemstone comes in several color variations ranging from yellowish green to brown, but most consumers are attracted to the bright lime greens and olive greens. Peridot, in smaller sizes, often is used in beaded necklaces and bracelets.