03 septembre 2015

Tourmaline, Cranberry Red Ruby Crystal, Corundum var. Sapphire, Opal, Rainbow Petrified Wood

Very deep green chrome crystal of Tourmaline. 350 ct and about 44 x 40 mm specimen. 1.7", 556ct Sharp Cranberry Red Ruby Crystal, India. Corundum var. Sapphire - Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka. Opal  - Tsehay Mewcha, Delanta Woreda, South Wello, Amhara Province, Ethiopia. Rainbow Petrified Wood (Araucarioxylon Arizonicum,  Triassic) - Chinle Formation, Arizona

27 août 2015

Fluorapatite, Fluorite, Spinelle, Stolzite

Fluorapatite avec inclusion cristalline de Rutile. Collection et photo Gianfranco Ciccolini Fluorite. Rocche Grana quarry, Montoso, Bagnolo Piemonte, Cuneo Province, Italie. Collection et photo Giuseppe Finello Spinelle. Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italie. Collection Fulvio Iurcotta / Photo Matteo Chinellato. Stolzite. Proprietary Mine, Broken Hill, New South Wales, Australie. Collection Domenico Preite  / Photo Matteo Chinellato. Fluorapatite. Collection et photo Giuseppe... [Lire la suite]
24 août 2015

Titanium quartz, Black Opal, Tourmaline Var Rubellite, Cerussite with Malachite Inclusions

Titanium quartz. Very large black opal carving from Lightning Ridge, Australia Rolling flashes green and blue. Tourmaline Var Rubellite, Malkhan Pegmatite Field, Krasnyi Chikoy, Eastern Siberia, Russian Federation. Cerussite with Malachite Inclusions, Namibia. Liddicoatite - "The Hat", Tamponilapa, Sahatany Valley, Vakinankaratra Region, Antananarivo Province, Madagascar.
23 août 2015

Tourmaline, Chrysocolla Slab

Tourmaline - Barra de Salinas, Coronel Murta, Jequitinhonha valley, Minas Gerais, Brazil Translucent Chrysocolla Slab - Cantera Pisco, Pisco Province, Ica Department, Peru
22 août 2015

Liddicoatite, Fluorite with cerussite & calcite, Phosphophyllite, Fluorite with calcite, Barite on calcite

Liddicoatite, Madagascar Fluorite with cerussite & calcite, Namibia Phosphophyllite, Bolivia Fluorite with calcite, Tennessee Barite on calcite, Nevada
17 août 2015

Tahitian Pearls

Tahitian pearls are among the most exotic and sought-after cultured pearls. While very often described as black, their colors cover the full spectrum from dark-black to silver-white, and nearly every color in between. Tahitian Pearls are most commonly referred to as black pearls but it would be a mistake to identify all black pearls as Tahitian, although only Tahitian Pearls produce their black aspect naturally. They are also distinctive for their large sizes and the magnificent colors and hues in which they occur. In the trade,... [Lire la suite]
Posté par Alain Truong à 22:14 - - Commentaires [0] - Permalien [#]
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15 août 2015

Freshwater Pearls

Freshwater pearls can be grown in every conceivable shape and exhibit an unparalleled palate of pastel colors ranging from dark purple, to light pink and white, as well as uncommon exotic and metallic colors. © Multicolour Gems Ltd, 1998-2001 Freshwater pearls are quite possibly the most versatile variety of pearls produced today and they are special because of the exotic shapes and colors in which they occur, the large quantities in which they are produced, and their consequent affordable prices. Their growth rates are faster... [Lire la suite]
14 août 2015


All species of garnets possess similar physical properties and crystal forms, but differ in chemical composition. The species names are pyrope, almandine, spessartine, grossular, uvarovite and andradite. Malaia Garnet is one of the most beautiful gemstones in Africa, featuring orange to pinkish orange to red in color which do not match the color and gemological properties of any of the other more well known varieties of garnet. The only commercial deposits of Malaya occur in the Umba Valley in Kenya, in Northern Tanzania and in... [Lire la suite]
12 août 2015

Hyalite (glass opal) from Waltsch, Bohemia, Czech Republic

Hyalite (glass opal) from Waltsch, Bohemia, Czech Republic.
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12 août 2015

Smoky Quartz from Switzerland

 Smoky Quartz from Switzerland
Posté par Alain Truong à 00:10 - - Commentaires [0] - Permalien [#]
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