AFRICAN MINERALS Minerals, Gemstones And Jewelry Information JANUARY 13, 2018 A Guide to Iolite joanne BLOG Iolite, also known as Water Sapphire and Cordierite, belongs to the mineral family Cordierite and has an exquisite violet- blue hue that can instantly enchant the viewers. Iolite stones have an interesting property known as pleochroism, which means that the stone exhibits different colors when viewed at different angles. The main color of the stone is of the violet and indigo shade but when viewed at different positions it reflects light blue or a honey color. Birthstone Iolite is not a traditional birthstone for any month but it is the natural birthstone for people born in winter solstice i.e. from 21st December to 19th January. It is also considered a powerful stone for Arians and Pisceans. It is also considered the ideal gemstone for twenty first wedding anniversary. (more…) FEBRUARY 2, 2017 What Are Quartz var. Chalcedony Dusted With Pyrite? joanne BLOG Quartz crystals from the 2nd generation occur in a number of different habits including individual multiple growth crystals, clusters of radiating multiple growth crystals or flower quartz and thick seams or crusts of drusy multiple growth crystals. In general, crystals from this generation are vitreous but internally clouded. The most aesthetic examples from this generation are individuals and clusters resting on second generation ferroan dolomite. An example of a multiple growth flower quartz cluster is displayed in the photo to the upper right. The 2nd picture to the right exhibits a classic specimen of 2nd generation quartz crystals sprinkled on second generation ferroan dolomite. Most quartz crystals from this generation typically have moderately to severely etched prism faces. This is generally more pronounced in larger crystals. Smaller crystals will typically have a series of etched, graphic markings on the prism faces perpendicular to the terminations of the crystal. (more…) 1 2 About Us My name is Paul and I had been a gemologist for over 15 years. African Minerals is a blog I share my thoughts about the jewelry industry and articles that I come across in my travels. To reach me, email me at paul@african-minerals.com Our Partners Recent Posts Lab Grown Diamonds – What Are They and Where Can I Buy Them? A Guide to Sunstone Should I Worry About Feather Inclusions? A Guide to Iolite What Are Quartz var. Chalcedony Dusted With Pyrite? Other Useful Links Crystal Lattice Structures Gems, Rocks and Minerals Mineral Collecting Beyond the 4Cs The Mineralogical Record Documentary Video Player 00:00 52:01 © African Minerals 2018 Powered by WordPress • Themify WordPress Themes