An alphabetical list of chemical and mineralogical names with reference numbers enables one to find a particular crystal description.

One of these is the Phoenix lander, which analyzed Martian polar soil for water and chemical and mineralogical constituents related to biological processes.

The health effects of volcanic ash depend on the grain size, mineralogical composition and chemical coatings on the surface of the ash particles.

Instead, modern meteorite classification relies on placing specimens into " groups " in which all members share certain key physical, chemical, isotopic, and mineralogical properties consistent with a common origin on a single parent body, even if that body is unidentified.

* Metamorphic petrology focuses on the composition and texture of metamorphic rocks ( rocks such as slate, marble, gneiss, or schist which started out as sedimentary or igneous rocks but which have undergone chemical, mineralogical or textural changes due to extremes of pressure, temperature or both )

In addition, the university owned an observatory ; a five-hectare botanical garden ; a botanical museum and a zoological garden founded in 1862 by a joint stock company ; a natural history museum ; zoological, chemical, and physical collections ; the chemical laboratory ; the physiological plant ; a mineralogical institute ; an anatomical institute ; clinical laboratories ; a gallery ( mostly from churches, monasteries, etc.

This division reflects differences in the mineralogical and chemical composition of microfossil remains ( and therefore in the methods of fossil recovery ) rather than any strict taxonomic or ecological distinctions.

A chondrite's group is determined by its primary chemical, mineralogical, and isotopic characteristics ( above ).

Together with Yuval Goren and Nadav Na ' aman, Finkelstein has coordinated the mineralogical and chemical analysis of the Amarna tablets.

The mineralogical composition of unaltered pyroclastic rocks is mainly determined by the presence of phenocrysts and the chemical composition of the parent magma.

** for chemical and mineralogical mapping of the entire lunar surface at high spatial resolution, mapping particularly the chemical elements magnesium, aluminium, silicon, calcium, iron, titanium, radon, uranium, and thorium

* High-resolution mineralogical and chemical imaging of the permanently shadowed north-and south-polar regions

This means that their mineralogical and chemical composition was changed by melting and crytallization processes.

The banded structure which these rocks commonly present in the field is only in a small measure due to plastic deformation, but is to a large extent original, and has been produced by flow in a viscous crystallizing intrusive magma, together with differentiation or segregation of the mass into bands of different chemical and mineralogical composition.

Although these chondrites contains + 50 % of nickel-iron metal, they are not classified as mesosiderites because their mineralogical and chemical properties are strongly related with CR chondrites.

He published several other studies on chemical, mineralogical and geological subjects and used his own farm Hagelstena in Alsike ( south of Uppsala ) as an experimental field.

He was a man of wide knowledge and extensive research, and wrote memoirs on chemical and mineralogical subjects, on eruptive rocks, on the structure of the Jura, the metamorphism of the Western Alps, on the formation of oolitic limestones, on kaolinization and on metalliferous veins.

Gahn travelled with a portable blowpipe, applying it to every kind of chemical and mineralogical enquiry, such as proving the presence of copper in the ashes of vegetables.

In order to assess the potential impact of diagenesis on archaeological or fossil bones, many factors need to be assessed, beginning with elemental and mineralogical composition of bone and enveloping soil, as well as the local burial environment ( geology, climatology, groundwater ).

Studies of the Martian surface were to include a global topograpical survey, mineralogical mapping, soil composition, and studies of the cryolithozone and its deep structure.

Surface studies included temperature and thermophysical properties of soils, mineralogical composition of the surface, surface condensates, and altimetry.

The mineralogical composition of a rock is one of the major ways in which it is classified.

However, they are difficult to grow, because of the needed mineralogical composition of the potting soil.

They are excessively variable in their mineralogical composition, and very often alternate in thin seams with biotite hornfels and indurated quartzites.

This finish may change the natural color of the stone depending on mineralogical composition, particularly with stones containing higher levels of iron.

They cover parts of the sedimentary base of the Eastern Kaiserstuhl, which is why in some places changes in the base ’ s mineralogical composition occurred.

QAPF diagrams are not used to classify pyroclastic rocks or volcanic rocks if modal mineralogical composition is not determined, instead the TAS classification ( Total-Alkali-Silica ) is used.

An exact name can be given only if the mineralogical composition is known, which cannot be determined in the field.

This classification is used if rock sample has fine-grained texture ( volcanic rocks ) but modal mineralogical composition can be determined.

According to the Wall Street Journal, Bechtel established a strong relationship with the rebel leader Laurent Kabila during the First Congo War of 1996-7 in central Africa, compiling " the most complete mineralogical and geographical data of the former Zaire ever assembled, information worth a fortune to any prospective mining or oil firm " and commissioning and paying for " U. S. National Aeronautics and Space Administration satellite studies of the country and for infrared maps of its mineral potential.

These observations made it possible to retrieve the first mineralogical maps of the planet and its satellite, and to study the atmosphere of Mars.

The Lengenbach Quarry ( LGB ) is noted among the mineralogical community for its unusual sulfosalt specimens.

In 1882 Tate first travelled to the Northern Territory and made a valuable report on its geological and mineralogical characteristics.

Analysis of physical and mineralogical properties of the pottery are undertaken to provide precise data to address research questions regarding chronology, provenience or manufacturing origins, processes of production, culture change, and the development of social and economic complexity in prehistoric Florida, the Southeastern US, and the Caribbean Basin.

Textural study involves measurement and characterisation of foliations, crenulations, metamorphic minerals, and timing relationships between these structural features and mineralogical features.

Over Jameson's fifty year tenure, he built up a huge collection of mineralogical and geological specimens for the Museum of Edinburgh University, including fossils, birds and insects.

The museum houses more than 30 million zoological, paleontological, and mineralogical specimens, including more than ten thousand type specimens.

He obtained his degree of Ph. D. in 1837 at Berlin, and was subsequently employed in the mineralogical museum of the university, becoming director of the palaeontological collection in 1857, and director of the museum in 1875.

As petrologic type increases from type 3. 1 through 3. 9, profound mineralogical changes occur, starting in the dusty matrix, and then increasingly affecting the coarser-grained components like chondrules.

Ijolite is a rare rock type of considerable importance from a mineralogical and petrological standpoint.

Mineralogy-geology museum is a part of Civil Engineering and Geosciences and contains around 200, 000 geological, mineralogical and crystallographical items divided into numerous sub-collections.

In the following year the royal mineralogical cabinet was committed to his charge to be conveyed into England, and from that time his attention was directed principally towards geology and cognate sciences.