I first reported on scapolite as a rare stone becoming part of the jewelry landscape back in the September/October 2009 issue (Volume 28, Issue 5). The mineralogical prop- erties are being repeated below for reference. (Ed. Note: subscribers can log in to the website, go to News and Cur- rent Publication, and search on the archives—Scapolite— to find this article in entirety.)
Gem NotesFluorescence is a common feature for a gemologist to note for a variety of gem materials. Some common gems of which fluorescence is well-known include diamond, ruby, pink spinel, pink and purple sapphire and alexandrite.
Gem NotesIn the course of my 40+ year career in gemology, many gemstones have crossed my desk but rarely are they so special that they take your breath away. In the last year, this happened twice. The first time was with a 24 ct unheated padparadscha sapphire in a private collection.
Gem NotesSapphirine is a mineral species, magnesium aluminum silicate. Sapphirine. Gemworld's Gem Note
Gem NotesWhat’s in a name? There are many instances in our industry where multiple names for the same gem exist either through trade names or color descriptions to make things “simple.” A few examples are tsavorite…
Gem NotesINTRODUCTION Diaspore is a mineral species with the formula, AlO(OH). It was first discovered in Sverdlovsk Oblast, Russia (the type locality) in 1801. Since the initial discovery, diaspore has been found in numerous localities around the…
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