Large Iceland Spar Specimen Group

A group of 10 large calcite 'Iceland Spar' specimens. 1.5 kg total, 42-61 mm (1 5/8 - 2 3/8 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [10, No Reserve]

A group of nine large calcite 'Iceland spar' mineral specimens. 1.68 kg total, 40-81 mm (1 1/2 - 3 1/8 in.) Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [9, No Reserve]

A group of six finely cut spar specimen, each in white card tray with label reading: 'Iceland Spar, Mexico'. 441 grams total, 43mm (1 3/4"). From a historic ‘Victorian Museum’ collection; from the

A group of ten large cut sections of Iceland spar. 1.38 kg total, 45-56 mm (1 3/4 - 2 1/4 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [10, No Reserve]

A group of over 40 Iceland Spar mineral specimens; held in a cardboard box. 2.57 kg total, 35-48 mm (1 3/8 - 1 7/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [48, No Reser

A mixed group of mineral specimens comprising: pyrite; malachite; ruby; smoky quartz; rutilite; pink and green Iceland spar; chalcopyrite; grussular garnet; each in collector's card tray with label. 4

A large group of various minerals comprising: optical calcite, muscovite, amethyst, lepidolite mica, pyrite, realgar orpiment, topaz, rubellite, malachite, satin spar, petrified wood, an amethyst pend

A group of fourteen pink Icelandic spar mineral specimens; each held in a white card collector's tray. 160 grams total, 16-23 mm (3/4 - 1 in.) Nuevo Leon, Mexico. Mineral Imports, London, UK. Gregory,

A group of thirty-eight large green fuchsite specimens. 3.1 kg total, 56-89 mm (2 1/4 - 3 1/2 in.) Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [38, No Reserve]

Group of assorted cut, rough, polished and unpolished mineral specimens, crystals, quartzes, and more, together with a fossilized trilobite and ammonite with "Product of Morocco" sticker. From 6.5" L

A group of four large polished amazonite pebbles; supplied in white cardboard trays. 787 grams total, 70-80mm (2 3/4 - 3 1/4"). From the historic ‘Victorian Museum’ or later collection of Gregory,

A satin spar specimen.This large crystal of the satin spar variety of the calcium sulfate mineral gypsum displays the thick tabular crystal habit common to this variety of the mineral.No collection lo

A satin spar specimen.This large crystal of the satin spar variety of the calcium sulfate mineral gypsum displays the thick tabular crystal habit common to this variety of the mineral.No collection lo

A group of 11 large ruby in zoisite mineral specimens. 2.1 kg total, 5.6-10.7 cm (2 1/8 - 4 1/2 in.). From Brazil. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [11, No Reserve]

A group of three grossular garnet chunks. 1.5 kg total, 8.4-10.9 cm (3 1/4 - 4 1/4 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [3, No Reserve]

Devonian Period, 417-354 million years BP. A large group of specimens of Gissocrinus goniodactylus Crinoid stem sections from Devonian Period of Morocco. 1.13 kg total, 10-65mm (1/4 - 2 3/4"). From an

A satin spar crystal specimen. This large crystal of the satin spar variety of the calcium sulfate mineral gypsum displays the thick tabular crystal habit common to this variety of the mineral.No coll

A satin spar crystal specimen.This large crystal of the satin spar variety of the calcium sulfate mineral gypsum displays the thick tabular crystal habit common to this variety of the mineral. No coll

Group (4) Mineral specimens, Including large, pink stilbite crystal on matrix from India; green flourite with sphalerite from China; vanadinite on matrix from Morocco; and clear quartz with large pyri

About ten mineral specimens of mostly unknown localities including Large single-crystal rhomb of Calcite, calcium carbonate, (~8 x 6 x 3 inches, 9 pounds); A single-crystal wedge of Calcite (7 x 3.75

A large wedge-shaped deep green chrysoprase section. 442 grams, 82mm (3 1/4"). From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, B

. 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,

Golden Iceland Spar Calcite Fluorescent 3.7oz

A large group of blue kyanite specimens, some within quartz matrix. 880 grams total, 2.6-10 cm (1 - 4 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [74, No Reserve]