TRANSPARENT RHODONITE WITH UNUSUAL INCLUSIONS
Most Rhodonite seen in the trade are translucent to opaque pink, often with black veins or spots. Many are fashioned into beads and cabochons. However, transparent Rhodonite is also found in some localities
INTERESTING INCLUSIONS IN QUARTZ CRYSTAL
Recently, we have received the special quartz crystal from Mr. Anwar Afghan. This quartz weight 21.53 cts. and has a double terminated crystal shape. It was said to originate from Himalaya Mountain in Pakistan-Afghanistan area
JADEITE CLASSIFICATION AND IDENTIFICATION
For standard gemological testing, jadeite commonly shows refractive index 1.66 spot reading and specific gravity 3.34 (may be considerably lower due to albite content). To classify jadeite type, advanced instrument – FTIR spectrometer is required. As a polymer is an organic compound that FTIR is able to detect.
GGT Laboratory recently had the opportunity to examine natural pollucite from Mr. Haj (Jamal Gems), said to be from Afghanistan. The pollucite sample was colorless; pear shape cut and weighed 10.11 cts.