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44 relations: Akatoreite, Apophyllite, Ångström, Birefringence, Brittleness, Bronze Age, Calcite, China, Cleavage (crystal), Conchoidal fracture, Cretaceous, Daye, Electron microprobe, Fluorescence, Hermann–Mauguin notation, Hubei, Hydroxide, Index ellipsoid, Infrared, Iron ore, Jurassic, Lustre (mineralogy), Mineral, Mohs scale of mineral hardness, Octahedron, Paleozoic, Pleochroism, Pluton, Polyhedron, Polymetal, Properties of water, Pyrite, Qing dynasty, Quartz, Ruizite, Shang dynasty, Silicate minerals, Skarn, Solid solution, Streak (mineralogy), Tetrahedron, Triclinic crystal system, Wollastonite, Yangtze.
Akatoreite
Akatoreite ((Mn2+, Fe2+)9Al2) is a mineral found in New Zealand.
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Apophyllite
The name apophyllite refers to a specific group of phyllosilicates, a class of minerals.
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Ångström
The ångström or angstrom is a unit of length equal to (one ten-billionth of a metre) or 0.1 nanometre.
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Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light.
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Brittleness
# A material is brittle if, when subjected to stress, it breaks without significant plastic deformation.
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Bronze Age
The Bronze Age is a historical period characterized by the use of bronze, and in some areas proto-writing, and other early features of urban civilization.
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Calcite
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3).
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China
China, officially the People's Republic of China (PRC), is a unitary one-party sovereign state in East Asia and the world's most populous country, with a population of around /1e9 round 3 billion.
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Cleavage (crystal)
Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite crystallographic structural planes.
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Conchoidal fracture
Conchoidal fracture describes the way that brittle materials break or fracture when they do not follow any natural planes of separation.
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Cretaceous
The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.
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Daye
Daye is a county-level city in eastern Hubei province, China.
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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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Fluorescence
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.
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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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Hubei
Hubei is a province of the People's Republic of China, located in the Central China region.
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Hydroxide
Hydroxide is a diatomic anion with chemical formula OH−.
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Index ellipsoid
In optics, an index ellipsoid is a diagram of an ellipsoid that depicts the orientation and relative magnitude of refractive indices in a crystal.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Iron ore
Iron ores are rocks and minerals from which metallic iron can be economically extracted.
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Jurassic
The Jurassic (from Jura Mountains) was a geologic period and system that spanned 56 million years from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period Mya.
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Lustre (mineralogy)
Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral.
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Mineral
A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.
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Mohs scale of mineral hardness
The Mohs scale of mineral hardness is a qualitative ordinal scale characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material.
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Octahedron
In geometry, an octahedron (plural: octahedra) is a polyhedron with eight faces, twelve edges, and six vertices.
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Paleozoic
The Paleozoic (or Palaeozoic) Era (from the Greek palaios (παλαιός), "old" and zoe (ζωή), "life", meaning "ancient life") is the earliest of three geologic eras of the Phanerozoic Eon.
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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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Pluton
In geology, a pluton is a body of intrusive igneous rock (called a plutonic rock) that is crystallized from magma slowly cooling below the surface of the Earth.
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Polyhedron
In geometry, a polyhedron (plural polyhedra or polyhedrons) is a solid in three dimensions with flat polygonal faces, straight edges and sharp corners or vertices.
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Polymetal
In chemistry or mining, polymetal or polymetallic is a substance composed of a combination of different metals.
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Properties of water
Water is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound and is described as the "universal solvent" and the "solvent of life". It is the most abundant substance on Earth and the only common substance to exist as a solid, liquid, and gas on Earth's surface. It is also the third most abundant molecule in the universe. Water molecules form hydrogen bonds with each other and are strongly polar. This polarity allows it to separate ions in salts and strongly bond to other polar substances such as alcohols and acids, thus dissolving them. Its hydrogen bonding causes its many unique properties, such as having a solid form less dense than its liquid form, a relatively high boiling point of 100 °C for its molar mass, and a high heat capacity. Water is amphoteric, meaning that it is both an acid and a base—it produces + and - ions by self-ionization.
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Pyrite
The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide).
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Qing dynasty
The Qing dynasty, also known as the Qing Empire, officially the Great Qing, was the last imperial dynasty of China, established in 1636 and ruling China from 1644 to 1912.
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Quartz
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
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Ruizite
Ruizite is a sorosilicate mineral with formula Ca2Mn2Si4O11(OH)4·2H2O.
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Shang dynasty
The Shang dynasty or Yin dynasty, according to traditional historiography, ruled in the Yellow River valley in the second millennium BC, succeeding the Xia dynasty and followed by the Zhou dynasty.
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Silicate minerals
Silicate minerals are rock-forming minerals with predominantly silicate anions.
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Skarn
Skarns or tactites are hard, coarse-grained metamorphic rocks that form by a process called Metasomatism.
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Solid solution
A solid solution is a solid-state solution of one or more solutes in a solvent.
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Streak (mineralogy)
The streak (also called "powder color") of a mineral is the color of the powder produced when it is dragged across an un-weathered surface.
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Tetrahedron
In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.
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Triclinic crystal system
Triclinic (a ≠ b ≠ c and α ≠ β ≠ γ) In crystallography, the triclinic (or anorthic) crystal system is one of the 7 crystal systems.
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Wollastonite
Wollastonite is a calcium inosilicate mineral (CaSiO3) that may contain small amounts of iron, magnesium, and manganese substituting for calcium.
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Yangtze
The Yangtze, which is 6,380 km (3,964 miles) long, is the longest river in Asia and the third-longest in the world.
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References
[1] https://en.wikipedia.org/wiki/Hubeite
