Heliodor and his Brothers.. Bixbite, Morganite..
Heliodor: Golden Beryl, Brother of Aquamarine and Goshenite When in nature, the Beryl appears yellow it is called Heliodor, when instead it shows a enough green it is called Emerald. In addition, the Pink Beryl is called Morganite, the Red Beryl is called Bixbite and the purplish-Pink Beryl is called Pezzottaite. When the Beryl occurs […]
Sunstone Gem: A very hot Colored Gemstone
Sunstone Gem A Hot Feldspar The Sunstone is a member of the Feldspar group. The large group of Feldspar also includes Amazonite, Labradorite displaying optical phenomena and Labradorite not displaying optical phenomena. If Labradorite Feldspar presents Aventurescence is a Sunstone. Aventurescence is the optical phenomenon that produces the shimmering effect (Glittering Effect) on the surface […]
Tanzanite Dynamite! A very Explosive Gem
Tanzanite Dynamite, as we nicknamed it because of the explosive effects that its discovery triggered in the Jewelery market and in the Gemology world, is a transparent blue-violet Zoisite variety. It was discovered by Man rather recently, although it has been formed several million years ago. Explosive Precious Stone It is said that in the […]
Grandidierite Gemstone: a Gemology rarity
The very rare Grandidierite Gemstone As a good naturalist, Alfred Grandidier (1836-1912) was a lover of colors. He was recognized by everyone as the foremost authority in the field of natural history of Madagascar. His two favorite colors were green and blue. This was what prompted the true discoverer of the Grandidierite, the mineralogist Alfred […]
Opal Gemstone: the Gem with Flying Colors
Opal Gemstone: the Gem with Flying Colors Opal was the favorite Gem of Pliny the Elder, writer and naturalist among the most famous of Ancient Rome. Plinio remained enchanted by the Opal colors because it is a Gem that owns the Red of Ruby , the green of the Emerald, the yellow of the Topaz, […]
Filled Emeralds: to give relief to suffering Beryls
Filled Emeralds Emerald: the fascinating green of a lush Beryl Natural Emerald is the green variety of the Beryl mineral. The green color of this Gemstone recalls lush landscapes, such as those of Ireland, nicknamed the Island of the Emerald. Beryl measures 7.5 in the Mohs scale of hardness and its Specific Gravity is about […]
Lapis Gemstone: what an uncomfortable journey..
Lapis Gemstone Lapis: What an uncomfortable journey.. The Egyptian pharaohs, 5500 years ago, used the Lapis Lazuli to adorn themselves, while the Chinese, 3000 years ago, used it for the construction of statuettes. On the other side of the world, before the landing of Christopher Columbus, the civilizations of North America collected it and considered […]
Pyrope Garnet: do not become a Pyropite Garnet..
Pyrope Garnet Pyrope: please, do not become a Pyropite Gemstone.. The Pyrope Garnet, whose name derives from the ancient Greek word Pyropos (flaming), is among the most used Gems in Jewelry. Garnet crystallizes in the cubic system, exactly as they do: Diamond, Spinel, Sodalite, Fluorite and Pyrite. Pyrope is one of the many Garnet varieties […]
Chrome Diopside or Diopside? Cute Gemstones
Chrome Diopside Diopside The Diopside is a Gem that often tests gemologists and gem dealers, who often confuse it for Tourmaline, Chrome Tourmaline, Tsavorite, Peridot, Zircon or for Sapphire Fantasy. But the Specific Gravity of around 3.3, the low hardness and high birefringence allow us to separate it from the above mentioned Gemstones. It is […]
Sapphire Gem: what a colored Corundum!
Sapphire Gem All the Corundum Colors, but not Red.. Sapphire is a variety of the Corundum mineral, one of the hardest natural substances in the world. Corundum measures 9 in the hardness scale of Mohs and is a fairly common mineral. Corundum often presents itself from opaque to semi-translucent and heavily included. Rarely has a […]