Olivine Vs. Peridot

Olivine is a very popular mineral series composed of magnesium iron silicate.^[1] Peridot is also a very popular gemstone and its chemical composition is also magnesium iron silicate.^[2]

Quick Facts on Differences of Olivine and Peridot

For a quick recap of the differences olivine and peridot:

• While both olivine and peridot can be transparent, olivine can be translucent.
• For chemical formulas, olivine can be Mg3(SiO4)(F or OH)2 while peridot can be (Mg or Fe)2SiO4.
• Olivine's rarity is less rare than peridot.

Quick Facts on Similarities of Olivine and Peridot

The similarities of olivine and peridot include:

• In terms of crystallography, olivine and peridot both are orthorhombic.
• In terms of luster, olivine and peridot both are vitreous.
• Olivine and peridot both streak colorless.
• Olivine and peridot both can be commonly brown, green or yellow.
• Olivine's specific gravity overlaps with peridot - olivine ranges from 3.2 to 3.4 and peridot ranges from 3.2 to 4.39.

Summary of Olivine

Olivine is a common mineral found in igneous and metamorphic rocks. It is a silicate mineral that is made up of magnesium, iron, and silica. Olivine is usually green in color and has a glassy luster. It is a relatively hard mineral, with a Mohs hardness of 6.5 to 7, making it a popular choice for use in jewelry.

Summary of Peridot

Peridot is a beautiful green mineral that has been used for centuries in jewelry making. It is a type of olivine mineral and is found in volcanic rocks and meteorites. Peridot is known for its vibrant green color, which is caused by the presence of iron. The mineral can range in color from yellow-green to olive green, and can be transparent or translucent.

Table Comparison of Olivine vs Peridot