Примери за hematite

• This suggests the hematite crystals are not oxidation products of siderite, because pyrite is easily altered to goethite under an oxygenated atmosphere.

• Each household had at least one, and often a few, hematite (iron oxide) cylinders.

• They also had to obtain their hematite pigment cylinders, seashells, presumably salt, and some other commodities from central places outside the village.

• The cylinders were made of powdered hematite held together by an unknown, but presumably organic, binder, and they were of a standardized size and shape.

• The topography and chaotic terrain may favor a hydrothermal aquifer as the original setting where hematite formed.

• The fault planes are characterized by anastomosing clayey gouge layers with thin (1 mm-10 cm) zones of cataclasite, breccia and hematite-clay-coated fractured rock.

• One of the young adults was closely associated with a layer of ground hematite and two jade beads.

• Future activities include climbing out of the crater and investigating this hematite-rich material.

• So, too, it appears that hematite-a red oxide powder sprinkled over mortuary remains-was not widely available.

• Secondary minerals are epidote, calcite, chlorite and hematite.

• The black bands contain aggregates of magnetite grains that fill similar botryoid cells with hematite one.

• Elsewhere, acquired magnetizations continue to climb in higher fields, indicating that hematite is a significant ferromagnetic component in both pluton and aureole.

• The landing site was selected partly because coarse gray hematite was expected to be present on the basis of orbital data.

• Households often kept mica near the hematite, perhaps as a "poor person's" imitation of specular hematite pigment.

• Figure 4a shows a microfold from a banded hematite quartzite sample.