Minerals and gems are classified by their physical properties, including hardness, luster, color, density, and magnetism. Different trace elements can produce other colors, allowing beryl to form semiprecious stones such as aquamarine. The color comes from additional traces of chromium and vanadium. Emeralds are formed of a mineral called beryl whose chemical formula is a complex mix of beryllium, aluminum, silicon, and oxygen.Corundum also forms sapphire in many colors, which generally come from trace mixtures of iron, titanium, and chromium. The red color is caused by traces of chromium. Rubies are formed of a mineral called corundum, comprised of aluminum oxide.Graphite is also made of carbon atoms, but with a different arrangement-explaining why diamond is the hardest mineral and graphite (used in pencil lead) is one of the softest. Formed under extremely high pressure hundreds of miles underground, they are found in very few locations around the world. Diamonds, made of carbon atoms, are the hardest natural substance found on Earth.Precious gems are formed in different ways and composed of different materials, meaning their appearances vary vastly. There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue to qualify as 'precious.' (At one time, amethyst was also considered a precious gem, but large reserves were later found in Brazil, reducing its value.) Historically, gems have been divided into precious and semiprecious classes. It's only when they are cut and polished that they obtain the brilliance and luster that gives them their value.

Uncut gems often look fairly ordinaryвЂ“like rocks. Many minerals form beautiful crystals, but the most prized of all are gemstones. Oxides, sulfides, sulfates, carbonates, and halides are other major mineral classes. Silicates-including quartz, mica, olivine, and precious minerals such as emeralds-are the most common class of minerals, as well as the major components of most rocks. Rocks themselves are made of clusters or mixtures of minerals, and minerals and rocks affect landform development and form natural resources such as gold, tin, iron, marble, and granite.

Geologists can tell a chalcedony from the arrangement and structure of its crystals. Chalcedonies include many types of cryptocrystalline quartz gems and feature a number of different colors.

1.5: Geodes can now be processed outside of the Blacksmith using Geode Crushers.A pink chalcedony shows off its beauty.1.1: Removed quality stars from foraged minerals.These geodes contain a wide variety of Minerals.Д¬lint, Dwarf (Loved Gift) Fish PondВ (Quest) Minerals can be sold at shipping box and also to the Blacksmith.ДЄ blacksmith can break this open for you.

All minerals, gems, and geodes can be used to dye existing clothing using the Sewing Machine, and some can be used to dye clothing using Dye Pots. There are 53 different minerals which can be donated.ДЄll Minerals, Gems, and Geodes can be used in the spool of the Sewing Machine located inside Emily and Haley's house to Tailor clothing, once the Sewing Machine is unlocked. Minerals not yet donated will have an item description of ' Gunther can tell you more about this if you donate it to the museum.' After one of that mineral has been donated, the item's description will appear. Minerals can be donated to the Museum for rewards and achievements. Minerals (other than geode minerals) are also possible items found in Fishing Treasure Chests. They can also sometimes be acquired as Monster Drops, as gifts from Villagers, or from the Statue of Endless Fortune. Some are found on the ground and some can be mined from nodes, which are also found in the Quarry. Most minerals are acquired from geodes after having Clint process them. Minerals are items that can be found in The Mines and the Skull Cavern. For an index to the completed minerals collection, see Collections#Minerals.

Gems and crystals