Natural History - Gem Quality Dioptase Mineral Specimen

A fine, transparent, gemmy crystal of dioptase with smaller side crystals, in plastic display box. From Namibia; From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Llo

A cluster of richly coloured dioptase crystals on a hematite matrix, in white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.286. 35 grams, 46mm (1 3/4"). Found Tsumeb, Zaire; fr

A group of ten one-off polished malachite mineral specimens of good quality malachite. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.184. 119 grams total, 25-46mm (1/4 - 1 3/4"). From the

Nice Quality Turqoise, Gem Silica, Varisite, Crysacola, Amazonite

Shegar Pakistan, 3.5cm tall, 1 cm wide. total weight with base: 16 grams. Keywords: Rock, Mineral, Gemstone, Gem, Rough, Raw, Specimen, Natural

All New York Area, many Ex. James Garabedian. the largest 5 cm. Keywords: Rock, Mineral, Gemstone, Gem, Rough, Raw, Specimen, Natural

. A mixed group comprising: a galena block from Spain; a celestina block from Sicily; a large scalenahedral calcite crystal from Rumania; a block of cubic octahedral pyrite from Peru. 948 grams total,

A group of six pieces of gem-quality, white-base opal, from Australia, with red, blue, and green fire. Found Australia; from the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd

Natural history mineral specimens including rock crystal, rose quartz, agates, and geodes. Largest: 3" H X 33.5" W.

Natural history mineral specimen of toucans with gilt metal feet, perched on a rock, with stolomite, amethyst, obsidian and other stones. On black dolomite base, retailed by Amsterdam Sauer. [10 x 10

Natural history mineral specimen of toucans with gilt metal feet, perched on a rock, with stolomite, amethyst, obsidian and other stones. On black dolomite base, retailed by Amsterdam Sauer. [10 x 10

Natural history Obsidian mineral specimen, large with natural inclusions and smoothed surface. 2.75" H X 13" W X 11.5" D.

An exceptionally fine mushroom-shaped moldavite specimen with classic ablation melting, accompanied by polished pebbles of amethyst and jasper. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008,

A specimen of vanadinite with calcite, the vanadinite crystals transparent and lustrous, from Mexico, in old white card tray with handwritten label reading: 'Durango, Mexico'. From Durango, Mexico; fr

A fine specimen of wulfenite consisting a sheet of numerous tabular orange crystals on a matrix of limestone with an underlying sheet of white calcite? From the historic ‘Victorian Museum’ collect

A mixed group of 50 polished mineral 'pebbles'. 1.12 kg total, 31-45 mm (1 1/4 - 1 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [50, No Reserve]

Natural History- Amethyst Mineral Specimen Estate Natural Amethyst Geode Color: shades of deep purple Dimension: approximately: 5"x 5.75" Condition:good estate conditionProvenance: Private Estate

A fine specimen of apophyllite with a sheet of smaller crystals on a thin agate base, and a well-formed and attractive cluster standing up from the base, from Maharashata, India. Found Maharashata, In

A specimen comprising a number of bladed red-orange crocoite crystals on matrix, in old white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.216. 30 grams, 36mm (1 1/2"). Found T

A mixed mineral group comprising: a rich dark blue crystalline mass of sodalite, a concave matrix surface invested with quartz, atacamite and malachite, a rashleighite specimen, and a lustrous white m

A fine, polished slice of rhodonite with a classic mix of red and black. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottle

A mixed group of 50 polished mineral specimens of various types, including haematite, quartz, red jasper, unakite, angelite, and others. 1.19 kg total, 27-44 mm (1 - 1 3/4 in.). Mineral Imports, Londo

A mixed group of 100 polished mineral 'pebbles'. 1 kg total, 20-34 mm (3/4 - 1 3/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [100, No Reserve]

A piece of medium blue, raw, untreated turquoise from Australia, with original 1970s exporter's label reading: TURQUOISE, HARTS RANGE, N.T., AUSTRALIA' in white card tray. Found Harts Range, Australia