Lepidocrocite (in quartz)
Official mineral name for a red to reddish-brown iron hydroxide related to goethite and limonite that occurs in scaly or fan-shaped aggregates. However, the red…
Category: Gem or Scam? Library
Libyan (Desert) Glass / Libyan gold tektite
Local name for a tektite (impact glass) found in a large scatter field in the southwestern region of the vast sandy plains stretching from Libya…
Lilac Lepidolite™
Unregistered commercial name for massive aggregates of lilac lepidolite from Zimbabwe, Africa. Introduced by Robert Simmons (Heaven & Earth) as a new variety of lepidolite…
Limonite quartz
Designation for quartz with a natural golden yellow to orange-brown coating or yellowish inclusions. Usually the color is caused by trace or a coating of…
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…
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…
