Eilat stone
Commercial name for a greenish-blue inhomogeneous mixture of various secondary copper minerals such as malachite, azurite, turquoise, pseudomalachite, chrysocolla and others. Named after the site…
Category: Gem or Scam? Library
Bolivianite
Commercial name originally used as a synonym for ametrine, after the first discovery in Bolivia (Anahi Mine). Although ametrine is now found in other locations…
Eagle’s Eye
A commercial name used for various different stones. The name is mainly used for polished stones that most closely resemble a type of gray tiger’s…
Chlorite jade
Misleading synonym for the mineral seraphinite, a variety of clinochlore (chlorite group). Thus, the mineral belongs to the chlorite group and has no relation to…
Elephant (skin) jasper
Commercial name for a yellowish-brown to brownish-red sedimentary rock from the Indian Himalayas with light brown lines and arches. The curved lines are cross sections…
Bornite
Mineralogical name for a natural copper ore that tarnishes to various iridescent shades due to oxidation. However, most offered bright blue/purple colored bornite or peacock…
Elohim labradorite
Misleading commercial name for larvikite, a magmatic rock (syenite or monzonite) from Larvik, Norway. Among other things, the rock contains feldspars that show a bluish…
Choco jasper
Commercial name for a chocolate-brown or brown and cream-colored stone whose exact composition is unknown. It is also unclear whether this is actually a jasper.…
Eisenkiesel
A German term for a variety of quartz colored red, orange or brown by hematite inclusions. Translucent to nearly opaque. The term “Eisenkiesel” is sometimes…
Botswana agate
Trade name for an agate variety from Botswana, with fine, parallel lines, often pink overflowing into gray to white.
