| Axinite | |
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 Axinite from California
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| General | |
| Category | Mineral |
| Chemical formula | calcium aluminium boro-silicate, (Ca,Fe,Mn)3Al2BO3Si4O12OH or Ca2(Fe,Mn)Al2BSi4O15(OH) |
| Identification | |
| Color | Reddish brown to yellow to colorless. California ( is a US state on the West Coast of the United States, along the Pacific Ocean. A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition a highly ordered atomic structure and specific A chemical formula is a way of expressing information about the Atoms that constitute a particular Chemical compound, and how the relationship between those atoms changes Calcium (ˈkælsiəm is the Chemical element with the symbol Ca and Atomic number 20 WikipediaNaming Boron (ˈbɔərɒn is a Chemical element with Atomic number 5 and the chemical symbol B. Silicon (ˈsɪlɪkən or /ˈsɪlɪkɒn/ silicium is the Chemical element that has the symbol Si and Atomic number 14 Blue, violet, grey. |
| Crystal habit | Tabular, wedge shaped crystal |
| Crystal system | Triclinic |
| Cleavage | Good |
| Fracture | Conchoidal |
| Mohs Scale hardness | 6. In Mineralogy, shape and size give rise to descriptive terms applied to the typical appearance or habit of Crystals The many terms used by mineralogists A crystal system is a category of Space groups which characterize Symmetry of structures in three dimensions with Translational symmetry in three directions Cleavage, in Mineralogy, is the tendency of crystalline materials to split along definite planes creating smooth surfaces of which there are several named types In the field of Mineralogy, fracture is a term used to describe the shape and texture of the surface formed when a Mineral is broken The Mohs scale of mineral hardness characterizes the scratch resistance of various Minerals through the ability of a harder material to scratch a softer material 5-7 |
| Luster | Vitreous |
| Refractive index | 1. Lustre (or luster) is a description of the way light interacts with the surface of a Crystal, rock, or Mineral. The refractive index (or index of Refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves is reduced inside the medium 68-1. 723 |
| Pleochroism | Strong |
| Streak | White |
| Specific gravity | 3. Pleochroism is an Optical phenomenon in which grains of a rock appear to be different colors when observed at different angles under a Petrographic microscope. The streak (also called powder color) of a Mineral is the Color of the powder produced when it is dragged across an unweathered surface Specific gravity is defined as the ratio of the Density of a given solid or liquid substance to the density of water at a specific temperature and pressure typically 26-3. 41 |
Axinite is a brown to violet-brown, or reddish-brown bladed mineral composed of calcium aluminium boro-silicate, (Ca,Fe,Mn)3Al2BO3Si4O12OH. A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition a highly ordered atomic structure and specific Calcium (ˈkælsiəm is the Chemical element with the symbol Ca and Atomic number 20 WikipediaNaming Boron (ˈbɔərɒn is a Chemical element with Atomic number 5 and the chemical symbol B. Silicon (ˈsɪlɪkən or /ˈsɪlɪkɒn/ silicium is the Chemical element that has the symbol Si and Atomic number 14 Axinite is pyroelectric and piezoelectric. Pyroelectricity is the ability of certain materials to generate an Electrical potential when they are heated or cooled Piezoelectricity is the ability of some materials (notably Crystals and certain Ceramics including bone to generate an Electric potential in response to
Dictionary
axinite
-noun
- A borosilicate of aluminum, iron, and lime, commonly found in glassy, brown crystals with acute edges.
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