28 novembre 2016

Fluorite crystal on matrix

Fluorite crystal on matrix from a mine in Russia
Posté par Alain Truong à 22:22 - - Commentaires [0] - Permalien [#]
Tags : ,

28 novembre 2016

Fluorite on Sphalerite

Fluorite on Sphalerite, Minerva No.1 Mine, Cave-in-Rock, Hardin County, Illinois, USA
28 novembre 2016

Fluorite

Fluorite, Shangbao Mine Hunan Province, China.
Posté par Alain Truong à 22:12 - - Commentaires [0] - Permalien [#]
Tags : ,
28 novembre 2016

Fluorite

Fluorite - Minerva Mine, Hardin Co., Illinois, USA.
Posté par Alain Truong à 22:09 - - Commentaires [0] - Permalien [#]
Tags : , , ,
28 novembre 2016

Fluorite with purple phantom

Fluorite with purple phantom - Minerva No. 1 Mine, Cave-in-Rock, Hardin Co., Illinois, USA 
14 novembre 2016

Largest known intense blue topaz faceted gemstone goes on display at the Natural History Museum

  The Ostro stone. An impressive 9,381 carats blue topaz, around 2 kilograms. © Trustees of the NHM, London.  LONDON.- One of the world’s most colourful and flawless large gemstones, the Ostro stone, has gone on permanent show in the Natural History Museum’s Minerals gallery. The gemstone weighs in at an impressive 9,381 carats - around 2 kilograms, similar in weight to two bags of sugar. It is the first large cut topaz of its kind to go on display at the Museum and will go on show alongside specimens from... [Lire la suite]
Posté par Alain Truong à 16:45 - - Commentaires [0] - Permalien [#]
Tags : ,

04 septembre 2016

Gemstones: Aquamarine to Zircon on display at University of Delaware's Mineralogical Museum

Spodumene, Mawi, Afghanistan, crystal (8.5 cm) and cut stone (317.96 cts). Image courtesy of Tom Spann.  NEWARK, DE.- The University Museums of the University of Delaware displays gemstones from the collection of Herb and Monika Obodda August 31-December 9, 2016 in the Mineralogical Museum in Penny Hall. This semester the University of Delaware Mineralogical Museum features gemstones used in jewelry, prized for their durability as well as their beauty. Minerals have long been fashioned into gemstones, both as... [Lire la suite]
Posté par Alain Truong à 19:43 - - Commentaires [0] - Permalien [#]
Tags : , ,
15 juin 2016

Fluorite with Chalcopyrite - Bergmännisch Glück Mine, Frohnau, Erzgebirge, Saxony, Germany

Fluorite with Chalcopyrite - Bergmännisch Glück Mine, Frohnau, Erzgebirge, Saxony, Germany 
15 juin 2016

Iridescent Goethite - Graves Mountain, Georgia, USA

Iridescent Goethite - Graves Mountain, Georgia, USA.
Posté par Alain Truong à 17:40 - - Commentaires [0] - Permalien [#]
Tags : , , ,
15 juin 2016

Agate - Anarak District, Esfahan Province, Iran

Agate - Anarak District, Esfahan Province, Iran
Posté par Alain Truong à 17:35 - - Commentaires [0] - Permalien [#]
Tags : , , ,