Denim lapis
Trade name for a light blue variety of lapis lazuli, after the color of denim fabric. The color difference is caused by a higher calcite…
Category: Gem or Scam? Library
Catlinite
Commercial name for a particular type of red metamorphic argillite (a sedimentary rock). It occurs in quartzite and includes the clay minerals pyrophyllite and sericite.…
Bloodstone
The name bloodstone is used for various types of minerals and rocks, both historically and in the modern gemstone trade. Originally the name refers to…
Desirite
Trade term coined by a seller from South Africa for a particular find of quartz crystals with phantoms/ inclusions of minerals from the amphibole group…
Cherry Blossom Stone
Commercial name used for various stones. Cherry Blossom Stone from Japan Originally the name Cherry Blossom Stone was used only for a special mineralogical phenomenon,…
Detroit agate
This material, also known as fordite or motor agate, is not an agate or mineral at all! It consists of old automotive paint layers that…
Flower Agate
Commercial name for a translucent chalcedony with opaque chalcedony inclusions resembling flowers, on the market since 2018 from Madagascar. This material is described to be…
DevaQuartz™ (Green Phantoms)
Unregistered commercial name introduced by Robert Simmons (Heaven & Earth) for quartz crystals with inclusions/fantoms of the green mineral celadonite. Sometimes also used for quartz…
Chevron amethyst
Synonym for banded amethyst, consisting of alternating layers of white quartz and purple amethyst forming a V-shaped or striped pattern. A chevron is a zigzag…
Deyerite
Commercial name for a dyed granite or diorite, derived from the verb to dye, combined with the rock name diorite. Do you have a nice…
