The following is a list of Nonnucleated gems and minerals listed in our database. Click the pictures to get full data, click the X to remove the gem from the list.
Pearl: Pearl is one of four main ornamental materials that are classified as "organic" gems, the other three being coral, ivory, and amber. About 92 percent of pearl is calcium carbonate, in the form of aragonite crystals, held together by an organic substance (concholin), which is identical to the horny outer layer of oyster shells, plus a small quantity of water. Mother-of-pearl has a simila (read full)
Gem5.com aims to provide easy to understand, searchable, sortable data related to gemstones.
We are a Koenig Media, LLC project and like our other ventures this one is free with no strings attached.
Brazilianite is a soft and brittle mineral that in general does work very well as a gemstone. It's soft at 5.5 Mohs, and so it will qui
Anglesite is a very soft gem just slightly harder than gold and silver and as such it does not hold facets well/cut easily.
Because of
Onyx is a translucent to semitransparent variety of Agate, which in turn is a variety of Chalcedony or cryptocrystalline quartz that is
Hauyne is a blue feldspathoid rock-forming mineral, one of four members of the sodalite mineral group that is a component of lapis lazu