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  2. Garnet - Wikipedia

    en.wikipedia.org/wiki/Garnet

    Most of the garnet at the Tuticorin beach in south India is 80 mesh, and ranges from 56 mesh to 100 mesh size. [citation needed] River garnet is particularly abundant in Australia. The river sand garnet occurs as a placer deposit. [70] Rock garnet is perhaps the garnet type used for the longest period of time. This type of garnet is produced in ...

  3. Rhodolite - Wikipedia

    en.wikipedia.org/wiki/Rhodolite

    Rhodolite is a varietal name for rose-pink to red mineral pyrope, a species in the garnet group. It was first described from Cowee Valley, Macon County, North Carolina. [2] The name is derived from the Greek "rhodon" for "rose-like", in common with other pink mineral types (such as rhodochrosite, rhodonite).

  4. Almandine - Wikipedia

    en.wikipedia.org/wiki/Almandine

    Almandine (/ ˈ æ l m ən d ɪ n /), also known as almandite, is a species of mineral belonging to the garnet group. The name is a corruption of alabandicus, which is the name applied by Pliny the Elder to a stone found or worked at Alabanda, a town in Caria in Asia Minor. Almandine is an iron alumina garnet, of deep red color, inclining to ...

  5. Shear (geology) - Wikipedia

    en.wikipedia.org/wiki/Shear_(geology)

    Thin section (crossed polars) of Garnet-Mica-Schist showing a rotated porphyroblast of garnet, mica fish and elongated minerals. This specimen was from close to a shear zone in Norway (the Ose thrust), the garnet in the centre (black) is approximately 2mm in diameter. Very distinctive textures form as a consequence of ductile shear.

  6. Colophonite - Wikipedia

    en.wikipedia.org/wiki/Colophonite

    Colophonite, less commonly kalophonit (from Ancient Greek: κολοφωνία, kolophonia, rosin or rosin colors) — an obsolete historical name for a brownish calcium-iron mineral of the garnet family, a variety of grossular (later, andradite), discovered as an associated metamorphic mineral in the iron ore mines of the southern Norwegian islands, primarily Tromø (near Arendal).

  7. Fracture (geology) - Wikipedia

    en.wikipedia.org/wiki/Fracture_(geology)

    fracture front – the line separating the rock that has been fractured from the rock that has not; fracture tip – the point at which the fracture trace terminates on the surface; fracture trace – the line representing the intersection of the fracture plane with the surface; Griffith cracks – preexisting microfractures and flaws in the rock

  8. Andradite - Wikipedia

    en.wikipedia.org/wiki/Andradite

    Andradite is a mineral species of the garnet group.It is a nesosilicate, with formula Ca 3 Fe 2 Si 3 O 12.. Andradite includes three varieties: Colophonite: a historical variety found in the Scandinavian islands, brownish or reddish in color, often opaque or translucent.

  9. Schäferite - Wikipedia

    en.wikipedia.org/wiki/Schäferite

    Fracture: Conchoidal: Mohs scale hardness: 5: Luster: Vitreous: Streak: ... It is the magnesium analogue of palenzonaite and is a member of the garnet structural ...