Minerals
A mineral is a naturally occurring chemical compound usually of crystalline form and not produced by life processes. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy. To meet the definition of “mineral” used by most geologists, a substance must meet five requirements:
Muscovite
Muscovite is the most common mineral of the mica own family. It is an essential rock-forming mineral present in igneous, metamorphic, and sedimentary rocks. Like other micas it with no trouble cleaves into skinny transparent sheets.
Talc
Talc is a naturally occurring mineral known for its softness, smoothness, and ability to absorb moisture. It is a silicate mineral that is composed...
Pyrite (Fool’s Gold)
Known since antiquity, pyrite is commonly referred to as “fool’s gold.” Although much lighter than gold, its brassy color and relatively high density misled many novice prospectors. Its name is derived from the Greek word pyr, meaning “fire,” because it emits sparks when struck by iron.
Galena
Galena is most abundant and widely found sulfide mineral and other name is lead glance .It is most important minerals of lead and silver.Crystal system is cubic ,isometric system and xpl features not observed. It is often associated with the minerals sphalerite, calcite and fluorite.
Halite
Culinary rock salt is actually halite. Its name is derived from the Greek word hals, which means “salt.” Most halite is colorless, white, gray, orange, or brown, but it can also be bright blue or purple. The orange color comes from inclusions of hematite, while the blue and purple colors indicate defects in the crystal structure.
Dolostone (Dolomite)
An important rock-forming mineral, dolomite is named after the French mineralogist Déodat Gratet de Dolomieu. It is a colorless to white, pale brown, grayish, reddish, or pink mineral. Its crystals are commonly rhombohedral or tabular, often have curved faces, and sometimes cluster in saddle-shaped aggregates.
Hornblende
Hornblende is a inosilicate amphibole minerals, which are two type hornblende minerals. They are ferrohornblende and magnesiohornblende. They are an isomorphous mixture of three molecules; a calcium-iron-magnesium silicate, an aluminium-iron-magnesium silicate, and an iron-magnesium silicate.
Clay Minerals
Clay minerals are the function minerals of the earths close to floor environments. They shape in soils and sediments, and through diagenetic and hydrothermal alteration of rocks. Water is essential for clay mineral formation and most clay minerals are defined as hydrous alumino silicates.
Chalcopyrite
Chalcopyrite is a copper include sulfide mineral .It has to formula CuFeS2.It is usually seed brassy to golden yellow color .Also copper is most important ore mineral thousands of years. Hardness of 3.5 – 4 on the Mohs scale and diagnostic properties streak is black green
Serpentine
Serpentine is not a single mineral instead a group of related minerals. Also for the primary contributors of Antigorite and Chrysotile, a difference is not commonly made between the character participants besides underneath medical study and type.
Orthoclase
An important rock-forming mineral, orthoclase is the potassium-bearing end member of the potassium sodium feldspar solid-solution series. It is a major component of granite its pink crystals give granite its typical color.
Apatite
Apatite is a very common mineral, but transparent gemstone-quality apatite is extremely rare. Despite the fact that apatite is the defining mineral for 5 on Mohs scale of hardness, the gemstone remains virtually unknown to most, and is seldom found in jewelry stores.
