Natural History - Citrine 'Porcupine' Mineral Specimen

A finely coloured group of citrine crystals from Brazil in a perspex sphere, with perspex stand. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); formerly G

Art by God, Natural History Crystal Citrine Quartz Mineral Specimen. Show stoppingly beautiful, giving off vibrations of positive energy. Great conversation piece that can balance the harmony in one's

Comprising: popcorn quartz, amethyst, agate, smoky quartz, brown obsidian, citrine, pyrite, 'desert rose', and others. 823 grams total, 23-81 mm (7/8 - 3 1/8 in.). Ex Mineral Imports, London, UK.Grego

. A mixed group of mineral specimens and a fossil comprising: twenty seven of chalcopyrite, four azurite on matrix, one citrine, one Flexicalimene trilobite. Private collection, Cambridgeshire, UK; ac

A group of 15 mixed mineral specimens, including: citrine druse (2), aragonite 'sputniks' (2), tourmaline in quartz, amethyst, banded jasper, clay in quartz 'porcupines' (3), natural agate slices (3),

A fine formation of orange citrine crystals on a matrix, in white card tray with label reading: 'Citrine Porcupine, Rio Grande do Sul, Brazil'. 160 grams, 83mm (3 1/4"). From a historic ‘Victorian M

A citrine 'porcupine' of dense small crystals, some with dark brown tips, in white card tray. 271 grams, 80mm (3 1/4"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bo

. 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,

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