Amethyst Vs. Citrine


Amethyst is a very popular gemstone composed of silicon dioxide.[1] Citrine is also a very popular gemstone and its chemical composition is also silicon dioxide.[2]

Images of amethyst

Images of citrine


Quick Facts on Differences of Amethyst and Citrine

For a quick recap of the differences amethyst and citrine:
  • While both amethyst and citrine can be transparent, amethyst can be translucent.
  • Amethyst can be commonly purple while citrine can be commonly orange.
  • Amethyst's rarity is less rare than citrine.

Quick Facts on Similarities of Amethyst and Citrine

The similarities of amethyst and citrine include:
  • In terms of crystallography, amethyst and citrine both can be hexagonal or trigonal.
  • For chemical formulas, amethyst and citrine both are SiO2.
  • In terms of luster, amethyst and citrine both are vitreous.
  • Amethyst and citrine both streak white.
  • Amethyst's hardness is similar to citrine - they both are 7 on the Moh's scale.
  • Amethyst's specific gravity is similar to citrine - they both are 2.651.

Summary of Amethyst

Amethyst is a mineral that belongs to the quartz family and is known for its purple color. The color of amethyst can range from pale lilac to deep purple, depending on the concentration of iron and other trace elements present in the crystal. It is a popular gemstone and is often used for jewelry, decorative purposes, and spiritual healing.

Summary of Citrine

Citrine is a variety of quartz, which is a mineral that is widely distributed throughout the world. It is a yellow to brownish-orange color and is often used in jewelry and decorative objects. Citrine is often referred to as the "healing quartz" due to its purported ability to promote mental clarity, emotional stability, and physical well-being.

Table Comparison of Amethyst vs Citrine

Amethyst (src) Citrine (src)
Transparency transparent, translucent transparent
Chemical Formula SiO2 SiO2
Chemical Composition silicon dioxide silicon dioxide
Specific Gravity 2.651 2.651
Hardness 7 7
Streak white white
Crystallography hexagonal, trigonal hexagonal, trigonal
Refractive Index 1.544, 1.553 1.544, 1.553
Hydrous No No
Colors common: purple
sometimes: lilac
less common: pale, violet, red
common: orange
sometimes: brown
less common: yellow
Fracture conchoidal, uneven conchoidal