Huge inventory of loose peridot specimens of all shapes and sizes. Olivine s formula is written as mg fe 2 sio 4 to show the substitution of the. The transparent green stone is a variety of the mineral olivine a silicate found in many igneous rocks and a major constituent of the earth s upper mantle. Forsterite is the magnesium rich member with a pure formula of mg 2 sio 4. Peridot has an olive or bottle green colour due to the presence of iron and a distinctive oily or greasy lustre.
See also an opposite side view of this gem grade peridot specimen. Olivine which is actually not an official mineral is composed of two minerals. Gem quality specimens of the mineral olivine are called peridot by gemmologists. Fayalite is the iron rich member with a pure formula of fe 2 sio 4. Peridot pronounced pair a doe is the gem variety of olivine.
This peridot rough specimen is a crystal section with mostly broken surfaces and a blocky shape. It is transparent and would yield a lightly included hi dome cabochon gem weighing over 15 carats. Your on line link direct to the peridot mines and gemstone faceting shops for natural peridot gemstones mined at several locations around the world including peridot gems from the san carlos indian reservation in arizona and burmese peridot gemstones. Buy now and receive 10 off your first purchase. This peridot rough specimen is a crystal section with mostly broken surfaces and a blocky shape.
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Buy now and receive 10 off your first purchase. See also an opposite side view of this gem grade peridot specimen. Huge inventory of loose peridot specimens of all shapes and sizes.
