The mineral heliotrope also called as bloodstone is an assortment of jasper or chalcedony (which is a cryptocrystalline blend of quartz). The "work of art" Bloodstone is green jasper (chalcedony) with red incorporations of hematite.

The red incorporations should look like spots of blood, thus the name bloodstone. The name heliotrope gets from different old ideas about the way in which the mineral reflects light.

Heliotrope was called "stone of Babylon" by Albert the Great and he alluded to a few otherworldly properties, which were ascribed to it from Late Antiquity. Pliny the Elder (first century) specified first that the mystical performers utilized it as a stone of intangibility. Damigeron (fourth century) expounded on its property to make rain, sun-oriented shroud and its uncommon ideas in divination and protecting wellbeing and youth.

Heliotrope includes as imperceptibility stone in one of Boccaccio's stories in the Decameron and as amending enchantment thing in a melodic comic drama got from it.

In mineralogy, plasma is semi-translucent, micro-granular or microfibrous and semiprecious assortment of the silica mineral chalcedony. It's shading, different shades of green are expected to dispersed silicate particles of various types—e.g., amphibole or chlorite. Different properties are those of quartz. Plasma regularly has knobs of dark quartz or red jasper (bloodstone) all through its mass. It has for some time been utilized for carvings and mosaics. Territories are India, China, Madagascar, Germany, Brazil, Australia, and Egypt. See additionally silicate mineral.