Mohs Hardness: 7
Specific Gravity: 2.65
Reflective Index: 1.544-1.553
Citrine is the yellow member of the quartz
family and is
prized for its golden to
lemon yellow hues. Its coloring is
due to
ferric iron. Unfortunately it has also
been commonly
called Citrine Topaz , which
is a misnomer as Topaz is a
completely
separate gem species from Citrine. Its name
is
from the old French citrin meaning yellow.
