Lithium quartz
A commercially used name for a pink-purple translucent to opaque quartz, long believed to contain inclusions or an outer layer of a lithium-rich mineral such…
Category: Gem or Scam? Library
Lizard Stone Jasper
Commercial name for a solid green mineral, probably a mineral from the serpentine group (possibly lizardite?) and therefore not jasper! So named because of its…
Lodalite / Lodolite
Commercial name for quartz with inclusions, especially but not exclusively chlorite, epidote, iron oxides and amphiboles. We see this mostly on the market as polished…
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…
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…
