Fergusonite Value, Price, and Jewelry Information
This mineral is not abundant and is known from various localities. Cabochons are cut merely as curiosities, as they have no special features that…
Euxenite Value, Price, and Jewelry Information
Euxenite is seldom seen in collections. Most collectors would not regard the mineral as facetable, but transparent fragments and areas of crystals…
Ettringite Value, Price, and Jewelry Information
Ettringite is not generally facetable. Any cut stone would be considered an extreme rarity.
Enstatite Value, Price, and Jewelry Information
Most gem enstatites have indices in the range 1.663-1.673. The brown and green gems from Tanzania are enstatites, as are the brownish-green stones…
Dumortierite Value, Price, and Jewelry Information
Dumortierite is a beautiful and very hard material, eminently suitable for jewelry. The cabochon material is the only generally known form, since…
Diopside Value, Price, and Jewelry Information
Violane has been used for beads and inlay—transparent material is always very tiny. The color of this material is deep violet or blue and is very…
Dickinsonite Value, Price, and Jewelry Information
This mineral is seldom even mentioned in the gem literature because it is so rare and has been so seldom cut. Faceted gems are practically nonexistent,…
Diaspore Value, Price, and Jewelry Information
Diaspore is hard enough to make a durable jewelry stone, but the typical light brownish color is not easy to sell. Despite the large Turkish material,…
Cancrinite Value, Price, and Jewelry Information
Cancrinite is one of the most attractive of all opaque or translucent gem materials. It is a bit too soft for average wear, but its distinctive color…
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