CITRINE

Fine quality Madeira citrine and diamond Retro Era ring in 14K rose gold and platinum

Variety:  Citrine
Species:  Quartz
​​Mohs Hardness:  7 out of 10
Color:  Yellow to orange, to brownish red
RI:  1.544 to 1.553 (very constant)
Birefringence:  0.009
SR/DR/AGG:  DR
Clarity Type:  Type II
Optic Character:  Uniaxial positive.  Might show a bull's eye or Airy's spiral optic figure and Brazil law twinning under crossed polarizing filters.
Pleochroism:  Very weak.  Different tones of body color
Spectrum:  Not diagnostic
Fluorescence:  Generally inert
SG:  2.66 (+0.03 / -0.02)
Routine Treatments:  Heating

Citrine Facts

Victorian Era Madeira citrine and blue lace agate brooch

​Citrine is the yellow to orange variety of quartz.​

The most valuable color of citrine is known as Madeira Citrine, which ranges from orange-red to brownish red.

Light yellow citrine is commonly referred to as Lemon Citrine.

Citrine rarely occurs in nature.  The majority of citrine on the market today is created by heating natural amethyst.

Citrine is a November birthstone and is the 13th wedding anniversary gemstone.

Citrine Gallery

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)