Gem Focus September 2022: Gold; the oldest commodity for all cultures…
Yellow metallic luster of gold is probably the most coveted sight for any explorer and miner since the beginning.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus August 2022: Rhodochrosite; a rose-colored ornamental gem rarely seen in transparent form…
Rhodochrosite is a manganese carbonate mineral (MnCO3) with low hardness of 4 and three directional perfect cleavage. The structure is very similar to calcite since it is a calcite group mineral with remarkable coloration thanks to manganese.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus June 2022: Andalusite; warm contrasting greens and reds in one gem…
Gemstones are arguably the most aesthetic representatives of minerals in nature. Common understanding of a gem’s beauty is attributed to its color and transparency. However, there are other mineralogical properties that might make a gemstone attractive, even unusual.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus June 2022: Tsavorite; the fresh green variety of garnet family..
High-end buyers are given more options while understanding that the beauty and rarity of tsavorite clearly justify its price.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus May 2022: Quartz gems with curious inclusions
Basic definition of inclusions may be given as trapped foreign materials or irregularities in a gemstone. They simply reflect the formation conditions regardless of the gemstone’s origin, natural or lab-grown. While natural inorganic gems contain…
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus April 2022: Peridot; an ancient stone aptly named after olives as a mineral.
Peridot is a yellowish green to green gemstone belonging to the olivine mineral group. It has been known for thousands of years.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus March 2022: Alexandrite; emerald by day and ruby by night…
Alexandrite is the variety of chrysoberyl that exhibits a change of color from blue-green hues in day light into purple-red hues in incandescent light. It is arguably one of the rarest of all gemstones.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus February 2022: Blue John of England
Fluorite with its bright colors and contrasted banding in aggregate form is a favored carving material. While mineral collectors are attracted to its large, transparent single crystal specimens, the same crystals are faceted for both collectors and jewelry designers, especially in vivid colors.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus January 2022: Mother of Pearls
A practicing gemologist should be aware of many imitations and treatments of mother-of-pearl, despite its abundance and inexpensive existence in the market.
*Gem Focus & Market Pulse (Free Subscriber)Gem Focus December 2021: Hydrogrossular Garnet
Hydrogrossular Garnet; a lesser-known garnet species better known by its trade names.
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