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Mixed Thumbnails and Miniatures from the Irv Brown Collection September 27, 2017 · 25 specimens 36 mixed thumbnails and miniatures from the collection of Irv Brown. Irv referred to this sub-collection of his as the "Bedroom Collection" and kept them displayed in a lighted glass case in his home. It's composed of a nice variety of quality minerals. |
T758 - Fluorite, Sphalerite on Galena sold
Missouri, USA
Miniature - 4 x 4 x 3.5 cm
Silvery Galena crystals adorned with small red Sphalerite crystals and transparent purple Fluorite cubes. Complete undamaged floater.
T759 - Azurite on Malachite sold
Bisbee, Cochise Co., Arizona, USA
Miniature - 5 x 3 x 2 cm
Smooth blobs of botryoidal Malachite form the matrix for sparkling hemispheres of Azurite crystals.
T760 - Calcite iwth Chalcopyrite sold
Sweetwater Mine, Missouri, USA
Miniature - 4 x 3.8 x 2 cm
V-formation of Calcite crystals with attached Chalcopyrite. Showy and undamaged except for the tip of another crystal grew into the lower backside of one of the Calcites.
T762 - Spessartine sold
Garnet Hill, Ely, Nevada, USA
Small Cabinet - 5.3 x 4 x 2 cm
Two Spessartine crystals to 1.6cm in Quartz lined vugs in pink Rhyolite. An especially good example for this occurrence. Undamaged.
T763 - Aquamarine $900 available
Skardu District, Pakistan
Miniature - 4.3 x 2.5 x 2 cm
Glassy and gemmy etched Aquamarine crystal. Natural processes in the pegmatite have partially dissolved the crystal leaving this fully crystallized, undamaged gem with oustanding form.
T764 - Silver on Calcite sold
Himmelfurst Mine, Saxony, Germany
Miniature - 4.5 x 4 x 3 cm
Elegant Silver wires rising up from a Calcite matrix. There is also Acanthite and Pyrite present. This is 'just' the trim off the fabulous wire Silver pictured in the Irv Brown chapter of the California collectors edition of the Mineralogical Record. That specimen (before the the trim) was the mine managers choice from the mine and sat on his desk for years. No damage.
T765 - Copper sold
Keeweenaw Peninsula, Michigan, USA
Small Cabinet - 5.5 x 5 x 3.5 cm
Copper crystals in an uncommon ring formation. Accented by green Epidote. Undamaged
T766 - Rhodochrosite with Fluorite sold
Sunnyside Mine, Silverton, Colorado, USA
Miniature - 4.8 x 3.9 x 3.5 cm
Single undamaged 2.1cm rhodochrosite crystal with pale green octahedra of Fluorite.
T767 - Zircon sold
Tanga Region, Tanzania
Miniature - 4.3 x 2.1 x 2.1 cm
Large, gemmy wine red Zircon crystal, one of the best I've seen from this locality. Multiterminated or intergrown cluster. Some edge chipping present, but overall a really nice one.
T769 - Elbaite on Albite sold
Himalaya Mine, Mesa Grande, San Diego Co., California, USA
Small Cabinet - 5.5 x 4.5 x 3 cm
Hot pink 3.2cm Tourmaline crystal on blades of white Albite. The Tourmaline is gemmy with a green termination. Displays beautifully. Collected by Irv Brown.
T770 - Rutile on/in Quartz sold
Novo Horizonte, Bahia, Brazil
Miniature - 4.5 x 4.5 x 3 cm
Rutile and Hematite 'stars' attached to Quartz crystals. The Quartz is included by golden needles of Rutile. This specimen should be hand delivered due to the fragile nature of the Rutile crystals.
T771 - Cerussite sold
Mibladen, Morocco
Miniature - 4 x 4 x 3 cm
Cerussite from Mibladen is somewhat common, but this is an uncommonly good one. A nice compact knob of matrix covered on both sides with gemmy Cerussite crystals to 2cm with minor amounts of pink Barite. Good from both sides, undamaged.
T772 - Emerald sold
Ural Mountains, Russia
Miniature - 4 x 2.5 x 2 cm
Large medium green Emerald crystal on schist. Undamaged, with gem zones.
T773 - Fluorite sold
Heights Mine, Weardale, England
Miniature - 4 x 4 x 3 cm
Transparent green cube of Fluorite, 3.5cm on the diagonal. Large glassy top surface with just the tip of a twin sticking through. Old collection sticker attached indicating D. I. Green collection.
T775 - Quartz sold
Lincoln Co., New Mexico, USA
Thumbnail - 3 x 2.5 x 0.7 cm
Japan-law twin smokey Quartz crystal. Edge contacted along lower left side, otherwise undamaged.
T776 - Andradite sold
Marki Khel, Spin Ghar range, Nangarhar, Afghanistan
Miniature - 3.5 x 3 x 3 cm
Large green Andradite crystal on matrix with Clinochlore. Largest Andradite is 1.9cm. Undamaged.
T777 - Rhodochrosite sold
Oppu Mine, Aomori Prefecture, Honshu Island, Japan
Miniature - 3.5 x 3 x 2.7 cm
Bubbly mounds of Rhodochrosite over Quartz. Satiny surface luster. Undamaged.
T778 - Chrysoberyl sold
Santa Teresa, Espirito Santo, Brazil
Thumbnail - 2.7 x 2 x 1.5 cm
Gemmy Chrysoberyl crystals with a 1.3cm hexxagonal crystal at the top.
T779 - Rutile sold
Champion Mine, White Mts, Mono Co., California, USA
Miniature - 3.5 x 3 x 2.8 cm
A mirror lustrous double-terminated 2.3cm Rutile crystal in a dark tan matrix. Undamaged, with gem zones.
T780 - Euclase sold
Gachala Mine, Boyaca Dept., Colombia
Thumbnail - 3.1 x 1.3 x 0.9 cm
Glassy and gemmy Euclase with superb blue color. It's actually a short, wide crystal with the contact along the long side, and can be displayed this way as an undamaged crystal. Because the long side is a smooth, flat cleave, it can be displayed vertically too, which is how Irv did.
T781 - Sphene sold
Capalinha, Minas Gerais, Brazil
Miniature - 3.5 x 2.3 x 1 cm
Undamaged, twinned crystal. Gemmy with good green color.
T782 - Wulfenite sold
Old Yuma Mine, Tucson Mts, Pima Co., Arizona, USA
Miniature - 4.5 x 2.8 x 2.3 cm
A 2.8cm wide red/orange Wulfenite crystal on Calcite matrix. The backside of the crystal has a druse of Calcite but the front is bright and lustrous. Minor chipping along the edges but overall great condition.
T783 - Boulder Opal sold
Queensland, Australia
Miniature - 3.8 x 1.8 x 1.2 cm
Precious opal over a dark matrix. I see blues, greens, yellows, and reds.
T784 - Willemite sold
Tsumeb, Namibia
Miniature - 4 x 3.5 x 3 cm
Blue Willemite on matrix, good from both sides. The most desired color of Willemite is this blue, especially on white Dolomite such as this. One side has distinct individual Willemite crystals, the other side has a large mass of blue Willemite.
T785 - Sphalerite sold
Balmat Mine, St Lawrence Co., New York, USA
Miniature - 3.5 x 2.8 x 2.4 cm
Cluster of large Sphalerite crystals, translucent orange/brown with flashes of yellow. Undamaged and crystallized all around.