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Colourless and glossy, very well-formed, on matrix, Analcim crystals from the Flinders Islands in Australia.8,60 x 6,60 x 4,90 cmReference : 4005

Sublime Opal Hyalite botroyoidal forming like a crown on its andesite matrix. The quality of the crystals is splendid, they are gemstones, clear and very bright. Very strong reaction to UV for this variety of Opal.5,75 x 4,50 x 3,30 cmReference : 3866

Vanadinite crystals present on all sides of the piece, from Morocco.9,20 x 5,70 x 5,80 cmReference : 4006

Amazing manganocalcite with multiple terminations.150 gram slightly pinkish specimen from Dalnegorsk, Russia.Slender piece measuring 8.8 cm long by 6.4 cm wide and 3.4 cm thick.This calcite which presents a shock is reactive to UV.Additional photos and order online on the DGmineraux...

Druse of dark purple amethyst crystals from Uruguay. The crystals are of fine quality.7 x 5,70 x 3,30 cmReference : 3867

Very nice crystals of Calcite in dog teeth gems, very glossy and well formed from Egremont in England. The crystals have deposits of iron oxides on some points that bring color to the whole.12,50 x 9,40 x 5,80 cmReference : 4007

Botroidal chalcedony with a well-marked purple color and some millimeter-sized quartz crystals.It comes from Mamuju, West Sulawesi Province, Indonesia.This sample measures 3.4 cm high by 3.5 cm wide and 2.5 cm thick.Additional photos and online order on the DGmineraux...

Marcassite crystals on chalk matrix with elongated and well-formed crystals, from the Kleeberg quarry in Germany.7,70 x 5,80 x 3,40 cmReference : 4008

Apophyllite green gemstone crystals on almost colorless Stilbite matrix which gives a nice contrast to the piece.5,70 x 4,30 x 2,20 cmReference : 4009

Well-formed hemimorphite crystals on limonite matrix from the Ojuela mine in Mexico. Beautiful color contrast.16,20 x 7,60 x 6,20 cmReference : 4010

Very nice group of prismatic crystals of Vesuvianite from the famous Jeffrey mine in Canada. The crystals are of a beautiful color and well formed.4,10 x 3 x 1,40 cmReference : 3871

Beautiful combination of rare and well-formed crystals, Willemite, Plattnerite and Cerusite. Specimen from the Chah Milleh mine in Iran. Piece from an old collection.9,20 x 8,10 x 6 cmReference : 4012

Iridescent Andradite garnet crystal from the famous Kohse mine in Japan which is now closed to access. This mine is well known for producing these superb garnets that we call rainbow due to their iridescent reflections.0,90 x 0,80 x 0,65 cmReference : 3872

Elegant amethyst crystals on matrix from the famous locality of Veracruz in Mexico.5,30 x 3,40 x 3,80 cmReference : 3873

Prehnite crystals forming like butterflies of a bright green, for some included Actinolite that color the crystals in very dark green. Specimen from Boulemane in Morocco.10 x 9,70 x 5,20 cmReference : 4013

Biterminated quartz slightly chloriteous from the Furka in Switzerland. Beautiful crystallization and quality for this specimen.4,50 x 3,20 x 2,20 cmReference : 3874

Pyrite crystals combined with fine quartz crystals that give a beautiful shine to the piece. This specimen comes from the Cavnic mine in Romania.9 x 6,50 x 3,80 cmReference : 4014

Superb white Calcite of Tsumeb slightly rosy, flower-shaped. Beautiful crystallization for this Namibian specimen.8,20 x 5,30 x 5,70 cmReference : 4015

Crystal finished and gem of Chrome Diopside, rare mineral crystallized as well, from Pakistan. The crystal is intense green, glossy and has a beautiful clarity.1,80 x 0,40 x 0,35 cmReference : 3876

Piece presenting on gangue a carpet of crystallized chrysocolla topped by gypsum crystals.It comes from the Chilean copper mines, without further details on the deposit (old piece).It measures 10.1 cm long by 6.1 cm wide and 3.7 cm thick.It weighs 124 grams.Additional photos and order online on...

Piece discovered in the famous Tsumeb mine in Namibia. It has white Calcite crystals translucent on Mottramite matrix botryoidale very dark green almost black in some places.10,50 x 7,80 x 5 cmReference : 3877