|
Mixed Minerals June 4, 2023 · 12 specimens |
AU568 - Dioptase on Calcite $1,800 available
Tsumeb, Namibia
Small Cabinet - 7 x 5.5 x 3 cm
Clusters of sharp lustrous Dioptase crystals on white Calcite crystals. The Dioptase crystals reach 1.4cm in size and occur in two main clusters with several smaller crystals spinkled across the Calcite. Some very minor contact on the left cluster of Dioptase crystals, otherwise perfect and undamaged.
AU569 - Milarite sold
Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil
Thumbnail - 2.5 x 2 x 1.3 cm
Single well terminated Milarite crystal on matrix from old (1980s) finds in Brazil. Milarite is a rare silicate mineral with the best found in the Swiss Alps and this locality in Brazil. Well terminated, translucent single crystal with nicely beveled termination edges and vivid greenish yellow color. A rare thumbnail.
AU570 - Mimetite sold
San Pedro Corralitos, Chihuahua, Mexico
Miniature - 3.8 x 3.5 x 3 cm
Botryoidal, satiny yellow Mimetite in a beautiful mound shaped cluster. This is old material rarely seen now in this quality. It's solid Mimetite without matrix. It's also in pristine condition.
AU571 - Turquoise pseudomorph (R) sold
Apache Canyon Mines, Turquoise Mtns., San Bernadino Co., California, USA
Thumbnail - 2 x 2 x 1 cm
Sharp 1.2cm Beryl or Apatite crystal that was psuedomorphed to Turquoise. This is an excellent example for the locality as most are not as sharp or are partial crystals (these are brittle on most are destroyed in the removal process), in fact this is the most aesthetic thumbnail I've seen. The crystal was reattached to the matrix by the previous collector. The following is quoted from Mindat: 'Host rock is Teutonia quartz monazite (Beckerman, 1982). Late turquoise replacement of miarolitic cavities resulted in turquoise pseudomorphs after the following minerals: quartz, muscovite, beryl, microcline, apatite as well unconfirmed orthorhombic pseudomorphs labeled as after barite. Chesterman at the Ca. Div. of Mines and Geology confirmed turquoise pseudomorphs after beryl based on morphology, trace beryl remnants and in situ beryl nearby. (Nazelrod, pers. comm.)'.
AU572 - Arsenopyrite, Siderite, Chlorite sold
Panasquiera, Castelo Branco, Portugal
Miniature - 5 x 5 x 3 cm
Bright silvery metallic crystals of Arsenopyrite, tabular tan Siderite, and green Chlorite over unidentified crystals all combine to form one heck of a pretty specimen. This is one of those pieces where the closer you look, the more you like it. Ex. Angela Cannon collection.
AU574 - Galena on Quartz with Chlorite $2,500 available
Madan, Rhodope Mtns., Bulgaria
Small Cabinet - 9 x 7 x 5.5 cm
AU575 - Scheelite, Grossular, Epidote sold
San Gabriel, Jalisco, Mexico
Small Cabinet - 7.5 x 4 x 3 cm
Uncommon combination of white Scheelite, green Epidote, and reddish brown Grossular crystals from Mexico. Fluorescent. Comes with a Dan Weinrich label.
AU576 - Grossular sold
Handan Pref., Hebei Prov., China
Small Cabinet - 5.5 x 5 x 4 cm
Large cluster of nothing but interconnected, gemmy Grossular garnet crystals. The crystals are an amber/yellow color and transluscent to transparent. Average crystal size is about 5mm to 1cm with the best crystal at 1.5cm. A good sized cluster for the find. There are a few contacts where this cluster grew against other garnet crystals, but the majority is clean undamaged crystals.
AU578 - Spinel sold
Mahenge, Morogoro, Tanzania
Miniature - 4.3 x 4.2 x 2.5 cm
Large, translucent reddish pink single Spinel crystal with some light green Pargasite attached to the back. Tall undamaged crystal with complex form.
AU579 - Chlorargyrite, Azurite, Cerussite $250 available
Broken Hill, New South Wales, Australia
Small Cabinet - 7.5 x 5 x 3.5 cm
AU580 - Stellerite sold
Piedra Parada, Tatatila Municipality, Veracruz, Mexico
Miniature - 4.5 x 4 x 3.5 cm
Vivid orange spherical group of Stellarite crystals on matrix from recent finds in Mexico. The crystal group is 2.3cm in size. Though these are fairly new to the mineral world, they are considered some fo the world's best of species due their rich orange coloration.
M608 - Platinum $1,200 available
Konder, Khabarovsk Region, Russia
Thumbnail - 0.7 x 0.7 x 0.5 cm
Partial cube of Platinum with a smaller attached crystal. Platinum crystals are much more rare than the nuggets and most are much more rounded than this one, in fact it was the sharpest, most well formed by far of a small lot of crystals I examined. It has stepped faces all around, well crystallized and undamaged. I understand these are no longer being found. Weighs 1.57 grams.