The following is a list of Luster gems and minerals listed in our database. Click the pictures to get full data, click the X to remove the gem from the list.
Chrysoprase: Chrysoprase is a variety of chalcedony, usually black or leek-green in color. The most highly-prized variation comes in bright-green, apple- or leek-green. It has a waxy lustre. It occurs as mammillary or botryoidal masses. The microscopic quartz fibers have a radial structure. The pigment is nickel. Large broken pieces are often full of fissures with irregular colors. Its color can fade in sun (read full)
Sapphire: Sapphire is the blue variety of Corundum. Sapphires can be a very dark blue, to the point of seeming dense and blackish from a distance, sometimes accompanied by a blue to dull green pleochroism, which is only visible from the side in cut stones. They may also be a strong, but not too bright blue, easily recognizable from a distance, this being the real color. Other possibilities are light, usual (read full)
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Corals are the supporting framework of small polyps. Each coral polyp, a tiny marine animal that lives in enormous colonies, extracts 
Hessonite is the brown-orange variety of Grossular, a nesosilicate in the Garnet group, with an isometric crystal system.
It appears w
Enstatite is the most common silicate under the Orthopyroxene group in the larger classification of Pyroxene minerals (which are rock-f
Sapphire is the blue variety of Corundum.
Sapphires can be a very dark blue, to the point of seeming dense and blackish from a distanc