Hematite In Thin Section

Thin tabular to micaceous or platy commonly in rosettes.

Hematite in thin section. Steel gray crystals and coarse grained varieties with a brilliant metallic luster are known as specular hematite. If it s thin enough you can see its reddish color in both ppl and xpl. Crystals complex rhombohedral pseudocubic prismatic rarely scalenohedral to 13 cm with triangular striations on 0001 and 1011.

Hematite structure is similar to the corundum structure. Hematite can be tricky. Large number of pages viewed.

And crystals in petal like arrangements are called iron roses. Hematite cement in conglomerate plane polars hematite cement in conglomerate crossed polars. Hematite α fe2o3 c 2001 2005 mineral data publishing version 1 crystal data.

If it s too thick it ll be as opaque as any metallic mineral. Magnetite fe 2 fe 2 3 o 4 the spinel group minerals is represented by a dozen minerals with a generalized formula a 2 b 2 3 o 2 with a an essentially cubic close packed oxygen arrangement with two different cation types in sixfold octahedral and fourfold tetrahedral coordination between the 111 close packed layers. Hematite fe 2 o 3 the name hematite is derived from the greek word for blood aima blood red stone because hematite can be red hematite consist of oxygen ions in hexagonal closet packing with fe 3 io two third of the interlayer octahedral sites.

Hematite ppl hematite plane polars. Hematite in thin section. Alex strekeisen i vetrini della mia fantasia.