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MK638 - Hemimorphite on Rosasite $ 750 Yanga Koubenza, M'fouati Dist., Bouenza Dept., Republic of Congo small cabinet - 7 x 3.5 x 2.5 cm Clusters of sky blue Hemimorphite over darker blue/green Rosasite from recent finds in the Congo. The Hemimorphite forms satiny hemispherical mounds. Most found were solid druses of Hemimorphite without Rosasite and specimens such as this with more isolated clusters on the Rosasite were uncommon. Highly aesthetic specimen for the find.
MK641 - Cobaltian Calcite with Kolwezite $ 2750 Mupine Mine, Kolwezi Miniing Dist., Lualaba, DR Congo small cabinet - 6.8 x 3 x 3 cm Exceedingly large single pink Cobaltian Calcite crystal from the Congo. This is a complete scalenohedral crystal that is partially doubly terminated along the bottom. Translucent and undamaged with green Kolwezite adding color contrast. This is the largest single Cobaltian Calcite I've ever seen from the locality. Last photo is backlit.
MK642 - Tourmaline with Quartz (R) $ 2500 Aricanga Mine, Sao Jose da Safira, Minas Gerais, Brazil small cabinet - 6 x 3 x 2.2 cm Doubly-terminated Quartz crystal attached to a doubly-terminated blue/green Tourmaline crystal. This is a classic and aesthetic Brazilian Tourmaline combo. The Tourmaline is 6 x 1.1cm in size and transparent to translucent. Purple Lepidolite attached to the Quartz adds color contrast. The crystal has one repair and a slight amount of restoration along the repair. Comes with a custom Lucite base.
MK643 - Tourmaline with Quartz, Lepidolite (R) $ 1200 Aricanga Mine, Sao Jose da Safira, Minas Gerais, Brazil small cabinet - 5.5 x 2.5 x 2.3 cm Doubly-terminated Quartz crystal with an attached doubly-terminated blue/green Tourmaline crystal. This is a classic and aesthetic Brazilian Tourmaline combo. The Tourmaline is 3.4 x 0.8cm in size and transparent to translucent. Purple Lepidolite adds color contrast. The crystal has one repair and was reattached to the Quartz crystal.
MK645 - Covellite $ 2250 Summitville, Rio Grande Co., Colorado, USA small cabinet - 6 x 5 x 4.5 cm Cluster of irridescent purple/blue Covellite crystals on matrix from Summitville, Colorado. Well balanced specimen loaded with great crystals.
MK649 - Azurite $ 2000 Touissit Mine, Oujda-Angad Prov., Morocco small cabinet - 5.7 x 1.8 x 1 cm Tall, elongated single Azurite crystal from the Touissit Mine in Morocco. The crystal has crisp edges and a sharp, chisel termination. Complete all around and undamaged stunning Azurite. Ex. Mari-Anne Castiaux, Valere Berlage. Comes with a custom Lucite base.
MK650 - Azurite with Shattuckite $ 200 Milpillas Mine, Cuitaca, Sonora, Mexico small cabinet - 6 x 4 x 2.5 cm Unusual Milpillas specimen composed of thin, wafer-like Azurite crystals with a much different than normal, lighter bright blue coloration. The Azurite blades are intergrown with sky-blue Shattuckite. Some of the Azurite have pseudomorphed to a bright green Malachite providing even more wild coloration to this specimen.
MK652 - Azurite with Malachite $ 1500 Christiana Mine, Lavrion District Mines, Lavrion District, Attiki Prefecture, Greece thumbnail - 2.5 x 1.5 x 1.4 cm Rare and beautiful gem Azurite crystal from a small find in 2018 at the Christiana Mine in Greece. This is an outstanding and aesthetic Greek Azurite with glossy luster and associated Malachite and Calcite. Vivid blue and transparent with backlighting. Ex. Jon Sigerman.
MK673 - Sphalerite on Fluorite $ 1250 Denton Mine, Hardin Co., Illinois, USA small cabinet - 6.8 x 4.5 x 3 cm Purple/blue cubic Fluorite with attached Sphalerite crystals from the Denton Mine. This is a wonderful and colorful piece with stepped growth features on the faces, good clarity, and nice phantoms/color zoning inside. There are a couple small Sphalerite included within the Fluorite too. Pristine.
MK679 - Azurite $ 200 Milpillas Mine, Cuitaca, Sonora, Mexico miniature - 4.7 x 3 x 1.3 cm Sculptural cluster of elongated Azurite crystals from the Milpillas Mine. Good luster and bright 'electric' blue falashes in areas. Highly showy example from this prolific Azurite locality that is no longer producing.
MK680 - Miargyrite, Pyrrhotite $ 450 Rosebud Mine, Pershing Co., Nevada, USA cabinet - 9.5 x 6 x 3.5 cm Blue/green matrix covered by a layer of drusy Quartz hosting larger, brassy crystals of Pyrrhotite and smaller black crystals of Miargyrite from an old Gold and Silver mine in Nevada. Excellent for the species with well formed Miargyrite crystals to over3mm in size and crystal groups to 6mm wide. Miargyrite is a rare silver sulphosalt species.
MK681 - Apatite $ 1250 Merelani Hills, Arusha, Tanzania thumbnail - 2.5 x 1.2 x 0.5 cm Single blue Apatite crystal of exceptional size and quality from the Merelani Tanzanite mines. This is a complete, gem quality crystal with a steep, multi-faceted termination. There are a couple edge chips, but it is in overall excellent condition and one of the better I've seen from the locality. This is likely from the Karo Mine where the best Apatite were found years ago. This is an excellent crystal and the pictures don't do it justice.
MK682 - Peridot $ 1200 Sapat Gali, Kaghan Valley, Mansehra District, Pakistan thumbnail - 2.7 x 1.9 x 1.5 cm Single Peridot crystal with bright green color, good clarity, and sharp, smooth crystal faces. So many Peridot crystals tend towards an olive green color and rounded rather that crisp edges. This crystal is far better than most with good color and smooth, flat crystal faces. Complete all around and undamaged. There are also included acicular crystals of Ludwigite on the back side. A Peridot of rare quality which I have owned for 20 years or more.
MK683 - Aquamarine $ 5000 Shigar Valley, Skardu, Pakistan miniature - 5 x 2.3 x 2.3 cm Water-clear single blue Aquamarine crystal from Shigar Valley. Stunningly beautiful gem crystal that is complete all around with glass-like luster and a complex, multi-faceted termination. Weighs 43.19 grams.
MK737 - Topaz $ 400 Rodrigo Silva District, Ouro Preto, Minas Gerais, Brazil thumbnail - 3 x 1.6 x 0.7 cm Complete, gemmy single 'Imperial' Topaz crystal from Rodrigo Silva in Brazil. Well terminated and complete all around with rich golden color, some edge chatter. A flat, tabular crystal with uncommonly good transparency. The termination faces are a bit matte in luster, but it also has never been cleaned. This is old stock purchased in Brazil by dealer Steve Perry back in the 1990s.
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