Natural History - Boxed Historic Stilbite Crystal Display Specimen on Matrix

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 group of twelve mineral specimens of muscovite (white mica) and quartz crystals on albite, with a specimen of the zeolites stilbite and heulandite on matrix. Private collection, Cambridgeshire, UK

A fine specimen of curved pink dolomite crystals on matrix. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.181. 288 grams, 14cm (5 1/2"). From the historic ‘Victorian Museum’ and later

A group of pyrite specimens with well-formed crystals ranging in size; some on a matrix. From Peru; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's)

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 group of unusually formed, frosted calcite crystals on matrix. From India; From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bo

A large sheet of small, acicular calcite crystals on matrix. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.177. 725 grams, 22cm (8 3/4"). From the historic ‘Victorian Museum’

Comprising a cluster of well-formed radiating prismatic crystals. 244 grams, 90 mm (3 1/2 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

A specimen with multiple layers of crystalline silver in a skarn matrix, the silver naturally surface-oxidized, from the El Mochito Mine, near San Pedro Sula, Santa Barbara Department, Honduras, with

Mid-Triassic Period, 240 million years BP. A fossil of Pecten sp. on a matrix of micaceous, fine-grained sandstone, from Yorkshire, with old adhesive label to back reading: 'Pecten, Robin Hood Bay, Yo

Collection of 12 Hemimorphite rock crystals. Natural History Specimen. White crystals on rust colored matrix from Mexico. Largest 6.25" From the estate of Frank Hall owner of Dover Scientific and coll

A matrix specimen with numerous small crystals of the rare mineral spangolite, in white card tray with adhesive tape label reading: 'SPANGOLITE, BINGHAM'. See http://www.mindat.org/min-3721.html 210 g

Carboniferous-Jurassic, 359-145 million years BP. A group of seven brachiopod specimens, including four spirifers (two in matrix), and three terebratulids, in old white and brown card trays with A.B.

Cretaceous Period, circa 100 million years B.P.. Featuring two echinoid specimens in an irregular matrix. 2.8 kg, 17.5 cm (7 in.). From Morocco, North Africa. [No Reserve]

A group of clear quartz acicular 'needle' crystals on matrix. 139 grams, 79mm (3"). From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Grego

A cluster of stilbite crystals from India, many showing the classic 'bow tie' crystal form, in white card tray with Gregory, Bottley and Lloyd label reading: 'STILBITE, Maharashta, INDIA'. See Bonewit

. Comprising around 80 pyrites or 'fool's gold' crystal specimens. 672 grams total, 15-36 mm (1/2 - 1 3/8 in.). From Peru. From the historic ‘Victorian Museum’ or later collection of Gregory, Bott

Upper Devonian Period, 370 million years B.P.. The freestanding textured matrix containing four specimens. 1.77 kg, 18 cm high (7 1/8 in.). Ex Cambridgeshire, UK, collection. [No Reserve]

Comprising dark green malachite with tabular deep blue azurite crystals. 30 grams, 60 mm (2 1/2 in.). Collected in person from various parts of the world mainly between 1957-1966. From the private min

A box of thirty eight amethyst clusters, ranging in colour from a pale, almost transluscent purple to a deep rich purple; some forming 'porcupine' blooms of clusters. From Brazil; from the historic ��

A large, well-formed single crystal of rock crystal quartz. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.219. 752 grams, 14cm (5 1/2"). From the historic ‘Victorian Museum’ a

A matrix specimen of radiating stibnite groups, in white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.253. 70 grams, 55mm (2"). From the historic ‘Victorian Museum��

A fine specimen of azurite on matrix, with malachite rosettes front and back of the specimen, from Arizona, USA. Found Arizona, USA; from the historic ‘Victorian Museum’ collection of Gregory, Bot

Two fluorite specimens, one displaying a matrix free, cloudy-transparent, deep green coloured crystal with bruising to one quoin, the second exhibiting pale mauve cubic crystals over white prismatic q