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52 relations: Alluvium, Anisotropy, Bushveld Igneous Complex, Cooperite (mineral), Crystal structure, Crystal system, Crystal twinning, Electron microprobe, Euhedral and anhedral, Facies, Fracture, Great Dyke, Hermann–Mauguin notation, Indentation hardness, Ionic bonding, Lac des Îles igneous complex, Lattice constant, Lawrence Bragg, Layered intrusion, Madagascar, Mafic, Magma, Metal, Metallic bonding, Microprobe, Montana, Nickel, Ore, Palladium, Peridotite, Petrographic microscope, Platinum, Platinum group, Pleochroism, Polarization (waves), Pyroxenite, Rùm, Serpentine subgroup, Soapstone, South Africa, Space group, Specific gravity, Stillwater igneous complex, Sulfide, Sulfide minerals, Tetragonal crystal system, Transvaal (province), Tremolite, Ultramafic rock, University of Cambridge, ..., William Henry Bragg, X-ray. Expand index (2 more) »
Alluvium
Alluvium (from the Latin alluvius, from alluere, "to wash against") is loose, unconsolidated (not cemented together into a solid rock) soil or sediments, which has been eroded, reshaped by water in some form, and redeposited in a non-marine setting.
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Anisotropy
Anisotropy, is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropy.
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Bushveld Igneous Complex
The Bushveld Igneous Complex (BIC) is the largest layered igneous intrusion within the Earth's crust.
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Cooperite (mineral)
Cooperite is a grey mineral consisting of platinum sulfide (PtS), generally in combinations with sulfides of other elements such as palladium and nickel (PdS and NiS).
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Crystal structure
In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.
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Crystal system
In crystallography, the terms crystal system, crystal family and lattice system each refer to one of several classes of space groups, lattices, point groups or crystals.
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Crystal twinning
Crystal twinning occurs when two separate crystals share some of the same crystal lattice points in a symmetrical manner.
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Electron microprobe
An electron microprobe (EMP), also known as an electron probe microanalyzer (EPMA) or electron micro probe analyzer (EMPA), is an analytical tool used to non-destructively determine the chemical composition of small volumes of solid materials.
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Euhedral and anhedral
Euhedral crystals are those that are well-formed, with sharp, easily recognised faces.
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Facies
In geology, a facies (pronounced variously as, or; plural also 'facies') is a body of rock with specified characteristics, which can be any observable attribute of rocks such as their overall appearance, composition, or condition of formation, and the changes that may occur in those attributes over a geographic area.
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Fracture
A fracture is the separation of an object or material into two or more pieces under the action of stress.
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Great Dyke
The Great Dyke is a linear geological feature that trends nearly north-south through the centre of Zimbabwe passing just to the west of the capital, Harare.
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Hermann–Mauguin notation
In geometry, Hermann–Mauguin notation is used to represent the symmetry elements in point groups, plane groups and space groups.
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Indentation hardness
Indentation hardness tests are used in mechanical engineering to determine the hardness of a material to deformation.
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Ionic bonding
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.
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Lac des Îles igneous complex
The Lac des Îles igneous complex of northwestern Ontario, Canada is a layered gabbroic intrusion which is the host for the largest palladium orebody in Canada.
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Lattice constant
The lattice constant, or lattice parameter, refers to the physical dimension of unit cells in a crystal lattice.
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Lawrence Bragg
Sir William Lawrence Bragg, (31 March 1890 – 1 July 1971) was an Australian-born British physicist and X-ray crystallographer, discoverer (1912) of Bragg's law of X-ray diffraction, which is basic for the determination of crystal structure.
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Layered intrusion
A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture.
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Madagascar
Madagascar (Madagasikara), officially the Republic of Madagascar (Repoblikan'i Madagasikara; République de Madagascar), and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of East Africa.
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Mafic
Mafic is an adjective describing a silicate mineral or igneous rock that is rich in magnesium and iron, and is thus a portmanteau of magnesium and '''f'''err'''ic'''.
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Magma
Magma (from Ancient Greek μάγμα (mágma) meaning "thick unguent") is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.
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Metal
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
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Metallic bonding
Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions.
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Microprobe
A microprobe is an instrument that applies a stable and well-focused beam of charged particles (electrons or ions) to a sample.
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Montana
Montana is a state in the Northwestern United States.
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Nickel
Nickel is a chemical element with symbol Ni and atomic number 28.
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Ore
An ore is an occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit.
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Palladium
Palladium is a chemical element with symbol Pd and atomic number 46.
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Peridotite
Peridotite is a dense, coarse-grained igneous rock consisting mostly of the minerals olivine and pyroxene.
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Petrographic microscope
A petrographic microscope is a type of optical microscope used in petrology and optical mineralogy to identify rocks and minerals in thin sections.
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Platinum
Platinum is a chemical element with symbol Pt and atomic number 78.
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Platinum group
The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table.
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Pleochroism
Pleochroism (from Greek πλέων, pléōn, "more" and χρῶμα, khrôma, "color") is an optical phenomenon in which a substance has different colors when observed at different angles, especially with polarized light.
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Polarization (waves)
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
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Pyroxenite
Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene group, such as augite, diopside, hypersthene, bronzite or enstatite.
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Rùm
Rùm(), a Scottish Gaelic name often anglicised to Rum, is one of the Small Isles of the Inner Hebrides, in the district of Lochaber, Scotland.
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Serpentine subgroup
The serpentine subgroup (part of the kaolinite-serpentine group) are greenish, brownish, or spotted minerals commonly found in serpentinite rocks.
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Soapstone
Soapstone (also known as steatite or soaprock) is a talc-schist, which is a type of metamorphic rock.
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South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa.
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Space group
In mathematics, physics and chemistry, a space group is the symmetry group of a configuration in space, usually in three dimensions.
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Specific gravity
Specific gravity is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.
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Stillwater igneous complex
The Stillwater igneous complex is a large layered mafic intrusion (LMI) located in southern Montana in Stillwater, Sweet Grass and Park Counties.
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Sulfide
Sulfide (systematically named sulfanediide, and sulfide(2−)) (British English sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions.
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Sulfide minerals
The sulfide minerals are a class of minerals containing sulfide (S2−) as the major anion.
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Tetragonal crystal system
In crystallography, the tetragonal crystal system is one of the 7 crystal systems.
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Transvaal (province)
The Province of the Transvaal (Provinsie van die Transvaal), commonly referred to as the Transvaal, was a province of South Africa from 1910 until the end of apartheid in 1994, when a new constitution subdivided it.
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Tremolite
Tremolite is a member of the amphibole group of silicate minerals with composition: ☐Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2.
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Ultramafic rock
Ultramafic (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content).
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University of Cambridge
The University of Cambridge (informally Cambridge University)The corporate title of the university is The Chancellor, Masters, and Scholars of the University of Cambridge.
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William Henry Bragg
Sir William Henry Bragg (2 July 1862 – 12 March 1942) was a British physicist, chemist, mathematician and active sportsman who uniquelyThis is still a unique accomplishment, because no other parent-child combination has yet shared a Nobel Prize (in any field).
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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References
[1] https://en.wikipedia.org/wiki/Braggite
