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K460 - Prehnite $ 150 Merelani Hills, Arusha, Tanzania small cabinet - 5.5 x 4 x 1.5 cm ![]() ![]() ![]() Clusters of translucent green/yellow Prehnite crystals. Solid Prehnite with a flat backside due to growth against Calcite. Quality, large crystals.
K449 - Prehnite $ 200 Merelani Hills, Arusha, Tanzania small cabinet - 6.5 x 5 x 2 cm ![]() ![]() ![]() Clusters of translucent green/yellow Prehnite crystals. Solid Prehnite with a flat backside with a thin layer of attached Graphite. Good quality specimen with large distinct crystals.
J955 - Hutchinsonite with Orpiment $ 280 Quiruvilca, La Libertad Dept., Peru cabinet - 12.5 x 10 x 7 cm ![]() ![]() ![]() ![]() ![]() Large sulfide rich matrix with botryoidal Orpiment and red crystals of Hutchinsonite. Hutchinsonite is a rare thallium sulfosalt species and these recently found red crystals are some of the best ever found. Crystals reach 6mm long and both the Orpiment and Hutchinsonite are present on two sides of this large display piece.
K158 - Brucite $ 200 Killa Saifullah, Balochistan, Pakistan cabinet - 13 x 8.5 x 3 cm ![]() ![]() ![]() ![]() Large specimen of solid Brucite without matrix. Large radial crystal groups, larger and thicker than most. Well crystallized all around and undamaged. Medium yellow color, translucent, thick and sturdy.
K427 - Rhodolite gemstone $ 350 Tanzania thumbnail - 0.8 x 0.8 x 0.8 cm ![]() ![]() ![]() ![]() Well saturated red Rhodolite garnet gemstone weighing 4.14 carats. I bought this from gem dealer Rick Kennedy about 20 years ago for about $250.
J961 - Hutchinsonite with Orpiment Quiruvilca, La Libertad Dept., Peru cabinet - 10 x 6 x 5 cm ![]() ![]() ![]() ![]() ![]() Large sulfide rich matrix with botryoidal Orpiment and red crystals of Hutchinsonite. Hutchinsonite is a rare thallium sulfosalt species and these recently found red crystals are some of the best ever found. Crystals reach over 1cm long and both the Orpiment and Hutchinsonite richly cover the specimen.
K590 - Pyrite $ 180 Navajun, La Rioja, Spain miniature - 5 x 5 x 4 cm ![]() ![]() ![]() ![]() Intergrown cubes of lustrous Pyrite. Such clusters like this are much less common than single cubes. This one is composed of 5 intergrown cubes. Complete all around and undamaged.
K648 - Smithsonite after Dolomite $ 150 Philadelpia Mine, Rush, Marion Co., Arkansas, USA thumbnail - 3 x 2 x 1.5 cm ![]() ![]() ![]() Bright yellow crystals of Smithsonite replacing Dolomite, with the curving form of the former Dolomite crystal clearly evident. Smaller individual Smithsonite crystals are scattered across the surface of the matrix. The bright color is caused by inclusions of Greenockite.
K693 - Smithsonite after Dolomite Philadelpia Mine, Rush, Marion Co., Arkansas, USA miniature - 4.5 x 3.5 x 1.8 cm ![]() ![]() ![]() ![]() Smithsonite replacing Dolomite, with the curving form of the former Dolomite crystal clearly evident. The surface of the matrix is also covered by a layer of velvety Smithsonite. This one in not the yellow color that the mine is best known for, but the large, isolated wavy crystal is spectacular and 1.7cm wide.
K687 - Stibiconite after Stibnite $ 150 Buena Vista Mine, Zacatecas, Mexico miniature - 4.9 x 2 x 1 cm ![]() ![]() ![]() ![]() Cluster of well terminated Stibiconite crystals. Complete all around and undamaged.
K676 - Brazilianite on Albite $ 240 Telirio Mine, Mendes Pimental, Minas Gerais, Brazil thumbnail - 2.7 x 2.5 x 2.5 cm ![]() ![]() ![]() A 1.7cm double-terminated Brazilianite crystal well presented on Albite crystals with other smaller Brazilianites. Undamaged and aesthetic.
K662 - Ettringite $ 150 N'Chwanning Mine, Kuruman, South Africa thumbnail - 1.3 x 0.6 x 0.6 cm ![]() ![]() ![]() ![]() Single, well terminated crystal of bright yellow Etringite.
K661 - Gaudefroyite $ 100 Wessels Mine, Cape Prov., South Africa thumbnail - 0.9 x 0.7 x 0.5 cm ![]() ![]() ![]() Stout single crystal. Well terminated, larger than most.
K677 - Pyromorphite $ 300 Bunker Hill Mine, Kellogg, Idaho, USA thumbnail - 2 x 2 x 1 cm ![]() ![]() ![]() ![]() Bright yellow/green crystals of Pyromorphite. Fine undamaged curving crystals over a 'matrix' of orange arsenian Pyromorphite.
K655 - Alanite $ 125 Mina Tiro Estrella, Capitan Mts, Lincoln Co., New Mexico, USA thumbnail - 0.9 x 0.8 x 0.2 cm ![]() ![]() ![]() Well formed single Allanite crystal. This locality is best known for it's twinned Smokey Quartz crystals, but it also produced these fine quality Allanite crystals.
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