Carnelian

Spleen Chakra Stone
A stone of protection in general and from , jealousy
and fear. In addition it can help with one's desires,
and brings good luck. Carnelian can help ease sorrows.
Associated with the root and sacral chakras. Physically,
it has been used to heal open sores, rejuvenate tissues
and cells, kidney stones and other kidney problems, gall
stones, colds, pollen allergies.
Carnelian, sometimes spelled cornelian,
is a red or reddish-brown variant of chalcedony. The
word is derived from the Latin word meaning horn, in
reference to the flesh colour sometimes exhibited.
Chalcedony is one of the cryptocrystalline
varieties of the mineral quartz, having a waxy luster.
Chalcedony may be semitransparent or translucent and is
usually white to gray, grayish-blue or some shade of
brown, sometimes nearly black. Other shades have been
given different names. A clear red chalcedony is known
as carnelian or sard.
People living along the Central Asian trade routes
used various forms of chalcedony, including carnelian,
to carve intaglios, ring bezels (the upper faceted
portion of a gem projecting from the ring setting), and
beads that show strong Graeco-Roman influence. Fine
examples of first century objects made from chalcedony,
possibly Kushan, were found in recent years at
Tillya-tepe in north-western Afghanistan. Hot wax would
not stick to it so it was often used to make seal
impressions.
The term chalcedony is derived from the name
of the ancient Greek town Chalkedon in Asia Minor, in
modern English usually spelled Chalcedon, today the Kadıköy district of Istanbul.