What mineral group is talc in?
magnesium silicate
Talc, or talcum, is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg3Si4O10(OH)2.
What mineral group is fluorite in?
halide minerals
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon.
Is fluorite a silicate mineral?
Contents. Image above: A variety of non-silicate minerals (clockwise from top left: fluorite, blue calcite, hematite, halite (salt), aragonite, gypsum).
What type of rock is talc?
TALC is a metamorphic and hydrothermal mineral which is found typically in the greenschist facies of metamorphic rocks, and in shear zones where it is an alteration product.
What property is talc?
| Physical Properties of Talc | |
|---|---|
| Chemical Classification | Silicate |
| Mohs Hardness | 1 |
| Specific Gravity | 2.7 to 2.8 |
| Diagnostic Properties | Feel, color, softness, cleavage |
What is the structure of talc?
Talc is a hydrous silicate mineral composed of magnesium (Mg), silicon and oxygen (SiO2, silica), and water. Its chemical formula is Mg3Si4O10(OH)2. Talc is relatively pure in composition but can contain small amounts of aluminum, iron, manganese, and titanium.
What is the formula of fluorite?
CaF2
Fluorite (CaF2)
| PubChem CID | 24617 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | CaF2 |
| Synonyms | Fluorite Calcium difluoride Fluorite (CaF2) Fluorspar Calcium fluoratum More… |
| Molecular Weight | 78.07 |
Is fluorite igneous metamorphic or sedimentary?
Fluorite is sometimes found as a mineral in igneous rock, but it is not an igneous rock. No. Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. Fluorite is not a sedimentary rock.
What is the chemical composition of fluorite?
Fluorite (CaF2)
| PubChem CID | 24617 |
|---|---|
| Molecular Formula | CaF2 |
| Synonyms | Fluorite Calcium difluoride Fluorite (CaF2) Fluorspar Calcium fluoratum More… |
| Molecular Weight | 78.07 |
| Component Compounds | CID 5460341 (Calcium) CID 14917 (Hydrofluoric acid) |
Does fluorite have a definite chemical composition?
Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2)….
| Physical Properties of Fluorite | |
|---|---|
| Chemical Classification | Halide |
| Diagnostic Properties | Cleavage, hardness, specific gravity, color |
| Chemical Composition | CaF2 |
| Crystal System | Isometric |
How do you identify a mineral talc?
Talc is easily distinguishable by its extreme softness, color is white, colorless, pale to dark green, or yellowish to brown. Crystals are rare; it is most commonly found in foliated, fibrous, or massive aggregates. It is often found mixed with other minerals, such as serpentine and calcite.
What is talc name the mineral from which it is made?
Talc is a hydrous silicate mineral composed of magnesium (Mg), silicon and oxygen (SiO2, silica), and water. Its chemical formula is Mg3Si4O10(OH)2.
Where can you find fluorite in a rock?
Fluorite is found as a common gangue mineral in hydrothermal veins, especially those containing lead and zinc minerals. It is also found in some greisens, granites, pegmatites and high-temperature veins, and as a component of some marbles and other metamorphic rocks. Visit gemdat.org for gemological information about Fluorite.
What is the chemical formula for the mineral talc?
Talc or talcum is a clay mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2.
What are the different types of talc crystals?
Most often as large distorted masses and foliated sheets and plates. Also micaceous, radiating, botryoidal, and in fibrous masses. Crystallized examples, which include flat tabular crystals, are rare and are almost always microscopic. Talc very commonly pseudomorphs after many minerals, assuming their original shape.
How is talc similar to pyrophyllite and magnesium?
Talc is a trioctahedral layered mineral; its structure is similar to pyrophyllite, but with magnesium in the octahedral sites of the composite layers.