Mtrolite / Mtorolite / Mtorodite
Commercial name for a deep green chromium-containing chalcedony from Zimbabwe. Named after Mtoroshanga, the site of discovery in Zimbabwe. Similar to the more common chrysoprase,…
Category: Gem or Scam? Library
Mugglestone
Commercial name for tiger iron, a combination of tiger’s eye, hematite and red jasper. Several commercial names are used for the same material: Ancestralite, Endurite,…
Mystic Merlinite™
Commercially registered trade name for a gray, violet translucent gabbro rock speckled with black. Although still touted as a relatively “newly” discovered gemstone, found only…
Mystic quartz
Commercial name for quartz coated with a fine layer of metal to create a rainbow of colors. Similar to the various types of aura quartz.…
Mystic topaz
Commercial designation for treated topaz, usually applied to colorless or light blue, faceted stones. In this treatment, the stone is coated with a thin metal…
Nebula Stone™ / nebula jade
Commercial name for a rock with light green spots or “eyes” visible on a dark background. Exact composition or scientific name is not unambiguous. The…
Nellite
Commercial name for a stone with a mainly yellow-brown to golden appearance, sometimes with blue spots or streaks, from Namibia or South Africa. There are…
New Jade
Misleading commercial name for the mineral bowenite, a translucent, fine-grained variety of serpentine antigorite, resembling nephrite. Also called bowenite jade and marketed under the misleading…
New Tanzanite
Misleading commercial name for gem-quality iolite, a violet-blue variety of the mineral cordierite. Using the name in connection with its resemblance to genuine (more expensive)…
Nickel
Nickel crystals are occasionally offered in dendrite or tree-like form, but this is all man-made. Nickel crystals may form on the wires used in the…
