reticulate. adj. 1. (Biology) in the form of a network or having a network of parts: a reticulate leaf. 2. resembling, covered with, or having the form of a net. vb. 3. to form or be formed into a net. [C17: from Late Latin rÄticulÄtus made like a net]. (adj. rÉªËtÉªk yÉ lÉªt, -ËleÉªt; v. -ËleÉªt). adj., v. -latâ¢ed, -latâ¢ing. adj. v.t.
The term âolivineâ is also used for a group of related minerals that all share similar crystal structures and the same general chemical composition of X 2 SiO 4, where X can stand for iron (Fe), magnesium (Mg), calcium (Ca), manganese (Mn) or nickel (Ni).uartz can only form from magmas that are relative rich in silica, while the olivine minerals only form from magmas that are relatively lean in silica, so quartz and olivine are incompatible minerals.
The Earth's mantle may have significant olivine. In meteorites, olivine is important in some pallasites. The olivines are a solid solution series with forsterite containing the most magnesium and fayalite having the most iron.The olivine in most stony iron meteorites ranges in composition from 60 to 85 percent forsterite with the remainder being fayalite.Feldspars --calcium, sodium. aluminum silicates--are the most important rock forming minerals in the crust of the Earth, but are relatively scarce in meteorites.he olivine in most stony iron meteorites ranges in composition from 60 to 85 percent forsterite with the remainder being fayalite. Feldspars --calcium, sodium. aluminum silicates--are the most important rock forming minerals in the crust of the Earth, but are relatively scarce in meteorites.