Lopezite
Fortunately for many people, it is already a familiar Scammite, but since it is also truly dangerous, it cannot be warned about enough. Lopezite is…
Category: Gem or Scam? Library
Leopard jasper / Leopard-skin Jasper
Commercial name for a volcanic rock (rhyolite) consisting of dark round spots/circles in a lighter-colored matrix, often with reddish-brown bands or spots. Named after the…
Lumachelle
A geological term for a sedimentary rock composed largely of fossil remains of shellfish or other marine organisms. The name comes from the French diminutive…
Moonstone
The name moonstone has been in use since ancient times, derived from its blue silvery luster reminiscent of the reflection of moonlight on water. The…
Madeira ‘citrine’
Commercial name for a heat-treated amethyst (HTA) with a yellow-orange to orange-brown color. The name is derived from a Portuguese wine made in the Madeira…
Magnesium
There are silver magnesium crystals on the market in the form of dendritic or branch clusters, sometimes even sold as being solid silver. Magnesium does…
Magnetic hematite
Designation for a man-made magnetic material. It does NOT contain natural hematite. Real hematite is not magnetic, if at all. Unfortunately, it is widely sold…
Magnifier Quartz™
Unregistered commercial name for clear to cloudy quartz points. Yes, indeed very normal quartz … It is touted to “enhance the effects of just about…
Mahogany obsidian
Commercial name for natural brown-black mottled volcanic glass. Named for its mahogany color. Although obsidian is often referred to as a gem or mineral, it…
Malay/Malaysian jade
Misleading commercial name for dyed chalcedony or quartzite. Has nothing to do with real jade. Malaysian “jade” is mostly encountered in the beads/jewelry trade and…
