Bornite Value, Price, and Jewelry Information
Bornite is suitable only for cabochons. The bronzy color rapidly tarnishes in air to a magnificent iridescent color display, mostly purple, but…
Boleite Value, Price, and Jewelry Information
Cut boleite is strictly for collectors, since it is soft and very rare. Faceted gems of any transparency should be considered among the rarest of…
Bismutotantalite Value, Price, and Jewelry Information
Extremely rare as a cut gem, even in very complete collections. Many of the minerals in the tantalite group have been faceted; bismutotantalite…
Bayldonite Value, Price, and Jewelry Information
Bayldonite is a nondescript greenish material that has been cut into cabochons by enterprising collectors of the unusual. Cut bayldonites are…
Analcime Value, Price, and Jewelry Information
Large colorless crystals of Analcime are a great rarity although small transparent crystals are abundant. Faceted gems are extremely rare and…
Actinolite Value, Price, and Jewelry Information
Actinolite is a member of a series that contains varying amounts of iron and magnesium.
Early History of Jewelry: Ancient Times to the 17th Century
An early history of gems and jewelry, highlighting different cultures and their varied beliefs about the powers of gems and precious rocks.
Spodumene Value, Price, and Jewelry Information
Extraordinarily difficult to cut, spodumene has several colorful varieties, such as hiddenite and kunzite, highly coveted for jewelry.
Natural Glass Value, Price, and Jewelry Information
Glass comes in several natural forms. All are used in jewelry.
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