Serpentine Marble Mineral Composition

Some famous localities include the lizard peninsula cornwall england the type locality of lizardite.
Serpentine marble mineral composition. Serpentine generally occurs in three polymorphs. The lamprophyre dyke intruded into the dolomitic marble forming a serpentinized contact zone. Serpentinite is a metamorphic rock that is mostly composed of serpentine group minerals. The exact chemical composition of marble will greatly vary dependong on the location and the minerals or impurities present in the limestone during recrystallization.
Marble is composed primarily of calcite dolotimite or perhaps serpentine and other similar minerals. Chrysotile a fibrous variety used as asbestos. The zone consists of olivine serpentine calcite dolomite biotite spinel and hematite. Magnesium iron nickel aluminum zinc or manganese.
Serpentine group minerals antigorite lizardite and chrysotile are produced by the hydrous alteration of ultramafic rocks. Antigorite a variety occurring in either. And y will be silicon aluminum or iron the appropriate generalized formula is thus. It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is.
Serpentine is a very common mineral and is found in abundance worldwide. Minor f and cl contents in the serpentine and biotite indicate the composition of the infiltrating h2o co2 fluid. Serpentinite is a rock composed of one or more serpentine group minerals the name originating from the similarity of the texture of the rock to that of the skin of a snake. The composition of these common rock forming minerals approximates mg3si2o5 oh 4.
Serpentine is not the name of a single mineral instead it is a name used for a large group of minerals that fit this generalized formula. X 2 3 y 2 o 5 oh 4 in this formula x will be one of the following metals. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Minerals in this group which are rich in magnesium and water light to dark green greasy looking and slippery feeling are formed by serpentinization a hydration and metamorphic transformation of ultramafic rock from.
And mount olympus cyprus the jeffery asbestos mine in richmond co quebec is the one of the most productive asbestos mines providing great. The antigorio valley piedmont italy the type locality of antigorite. The serpentine subgroup part of the kaolinite serpentine group are greenish brownish or spotted minerals commonly found in serpentinite rocks. These are igneous rocks that are composed of olivine and pyroxene peridotite pyroxenite serpentine group minerals occur less commonly in some olivine bearing marbles ophicalcite.
The name is thought to come from the greenish color being that of a serpent. The serpentine group describes a group of common rock forming hydrous magnesium iron.