Dunite may also form by the accumulation of olivine crystals on the floor of large basaltic or Picrite magma chambers.
For example, peridotites with well-formed olivine crystals occur mainly as layers in gabbroic complexes.
Layered peridotites are igneous sediments and form by mechanical accumulation of dense olivine crystals.
It is a pallasite-a type of stony-iron meteorite with striking olivine crystals.
The fracturing of olivine crystals and other features must be observed under a microscope with shock effects observed under polarized light.
When cut and polished, the meteorite showed beautiful yellowish olivine (peridot) crystals.
It consists of cm-sized olivine crystals of peridot quality in an iron-nickel matrix.
Pallasites are a type of stony-iron meteorite that when cut and polished show yellowish olivine (peridot) crystals.
Remarkably, many of the new specimens (about 20%) were found to contain olivine crystals and so revealed the silicated nature of the meteorite.
Due the heterogeneous structure of Seymchan, there are two types of specimens: with or without olivine crystals.
