Good Night my Redcafriends, I look forward to this Excellently Wonderful tonight, today in LIFE AND COLOR. (OLIVINO).
Today El OLIVINO Chapter 2.
It is an ortho silicate of iron and magnesium. It usually occurs in grainy forms, but it also crystallizes in olive green rhombic prisms; its density is 3¨4 and its hardness 6¨5-7.
It is found in ordinary form in igneous or plutonic rocks, such as peridorite; Olivian grains also appear in many meteors, and some larvae, especially basalts, are rich in this mineral.
In Jewelry, as a precious stone, the periodot or chrysalite is used, a variety of olivian, green and transparent that is found in Mexico, Brazil, and Egypt.
In foundries for the preparation of molds, olive sand is used, it is easily hydrated, transforming into serpentine.