enow.com Web Search

  1. Ad

    related to: pyrite shapes and properties

Search results

  1. Results from the WOW.Com Content Network
  2. Pyrite - Wikipedia

    en.wikipedia.org/wiki/Pyrite

    The mineral pyrite (/ ... consequences for the crystallographic and physical properties of iron pyrite. ... Pyrite can also form shapes almost the same as a ...

  3. Pyrite group - Wikipedia

    en.wikipedia.org/wiki/Pyrite_group

    The group is named for its most common member, pyrite (fool's gold), which is sometimes explicitly distinguished from the group's other members as iron pyrite. Pyrrhotite (magnetic pyrite) is magnetic, and is composed of iron and sulfur, but it has a different structure and is not in the pyrite group.

  4. Cubic crystal system - Wikipedia

    en.wikipedia.org/wiki/Cubic_crystal_system

    In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals. There are three main varieties of these crystals: Primitive cubic (abbreviated cP and alternatively called simple cubic)

  5. Euhedral and anhedral - Wikipedia

    en.wikipedia.org/wiki/Euhedral_and_anhedral

    Euhedral pyrite crystals A subhedral sample showing sharp to anhedral pyrargyrite crystals. Euhedral and anhedral are terms used to describe opposite properties in the formation of crystals. Euhedral (also known as idiomorphic or automorphic) crystals are those that are well-formed, with sharp, easily recognised faces.

  6. Sperrylite - Wikipedia

    en.wikipedia.org/wiki/Sperrylite

    Sperrylite is a platinum arsenide mineral with the chemical formula PtAs 2 and is an opaque metallic tin white mineral which crystallizes in the isometric system with the pyrite group structure. It forms cubic, octahedral or pyritohedral crystals in addition to massive and reniform habits.

  7. Dodecahedron - Wikipedia

    en.wikipedia.org/wiki/Dodecahedron

    The name crystal pyrite comes from one of the two common crystal habits shown by pyrite (the other one being the cube). In pyritohedral pyrite, the faces have a Miller index of (210), which means that the dihedral angle is 2·arctan(2) ≈ 126.87° and each pentagonal face has one angle of approximately 121.6° in between two angles of ...

  8. List of mineral tests - Wikipedia

    en.wikipedia.org/wiki/List_of_mineral_tests

    Mineral shape, properties or form been altered. Lattice structure and geochemistry; Signature chemical elements and bonds of the mineral. For example, is the mineral hydrous like mica or non hydrous like Jadeite.

  9. Pyrrhotite - Wikipedia

    en.wikipedia.org/wiki/Pyrrhotite

    Streak can be used when properties between pyrrhotite and other sulfide minerals are similar. Pyrrhotite displays a dark grey to black streak. [15] Pyrite will display a greenish black to brownish black streak, [16] chalcopyrite will display a greenish black streak, [17] and pentlandite leaves a pale bronze-brown streak. [18]

  1. Ad

    related to: pyrite shapes and properties