Admin Table of Contents [hide]
What is garnets chemical formula?
Garnet is a rather complex mineral that has a general chemical formula of R3R2(SiO4)3, where R3 is a bivalent (gives up two electrons) metal and R2 is a trivalent (gives up three electrons) metal when forming a chemical bond.
What is the scientific name for Garnet?
Spessartine. Mn3Al2Si3O12. Andradite. Ca3Fe2Si3O12. Grossular.
What crystal structure is Garnet?
dodecahedron
Garnets generally produce symmetrical, cube-based crystals. The most common crystal shape among this group is the rhombic dodecahedron, a twelve-sided crystal with diamond shaped (rhombic) faces. The basic shape is a trademark for garnets, for no other crystal shape is so closely associated with a single mineral group.
How is garnet stone formed?
Most garnet forms when a sedimentary rock with high aluminium content, such as shale, is metamorphosed (subjected to heat and pressure). The high heat and pressure breaks the chemical bonds in the rocks and cause minerals to recrystallise.
What are garnets made out of?
What is Garnet? Garnet is the name used for a large group of rock-forming minerals. These minerals share a common crystal structure and a generalized chemical composition of X3Y2(SiO4)3. In that composition, “X” can be Ca, Mg, Fe2+ or Mn2+, and “Y” can be Al, Fe3+, Mn3+, V3+ or Cr3+.
Where do you find garnets?
Today, different types of garnet are found across different parts of the globe. Pyrope Garnet is located in Brazil, India, Sri Lanka and Thailand. Almandite is found in parts of Brazil, India, Madagascar, and the US. Spessartite is also found in Brazil, as well as China, Kenya, and Madagascar.
Is garnet a silicate mineral?
garnet, any member of a group of common silicate minerals that have similar crystal structures and chemical compositions. They may be colourless, black, and many shades of red and green.
What are the chemical properties of garnet?
| Physical Properties of Garnet | |
|---|---|
| Chemical Classification | Silicate |
| Diagnostic Properties | Hardness, specific gravity, isometric crystal form, lack of cleavage |
| Chemical Composition | General formula: X3Y2(SiO4)3 |
| Crystal System | Isometric |
What are the chemical properties of Garnet?
What silicate structure is Garnet?
Crystal structure Garnets consist of groups of independent, distorted SiO4 tetrahedrons, each of which is linked, by sharing corners, to distorted BO6 (e.g., aluminum- and/or iron-centred) octahedrons, thus forming a three-dimensional framework.
What minerals make up garnet?
Is garnet a mineral metallic?
Garnet is a silicate mineral group; in other words, garnet’s complex chemical formula includes the silicate molecule (SiO4). The different varieties of garnet have different metal ions, such as iron, aluminum, magnesium and chromium.