20 Satin Spar Mineral Specimens

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 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 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

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 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 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 twenty yellow chunks of sulphur displaying clusters of small crystals. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory

Est. $ 20 - 60 Assorted Mineral Specimens. An assortment of four mineral specimens including amethyst, root beer agate, catlinite, and an ore sample.

Frappe, James (American/Pittsburgh, 1921-2016), Untitled Brutalist Sculpture, undated, c.1970s, unsigned, steel sculpture with iron rod and purple mineral specimen, 20 x 18 x 10 inches. James Frappe w

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

Five large natural selenite rock crystal gypsum quartz mineral specimens. Largest: 20" L x 5" W. Provenance: Property from an Upper East Side townhouse.

(lot of 20) Group of geodes and mineral specimens, including amethyst, largest: 5"l. Provenance: From the Ligonier, PA estate of Richard Mellon Scaife

20.5 inch tall Amethyst Brazilian Geodes Chimney. Natural Mineral Specimen. Dimensions: H: 20.5 inches: W: 9.5 inches: D: 7 inches ---

Collection of Natural Mineral Specimens. Includes a citrine cluster, (20 black quartz clusters, and a assortment of assorted gemstones. Citrine measures 3" x 5" x 5-1/8". Larger black quartz measures

A four drawer case with a nearly complete set of specimens (seven missing) and another identical case with unlabeled and jumbled specimens. Dimensions: Each case is 13" x 20" x 9". Provenance: From a

2 Large Collections of Rock and Mineral Specimens, boxes measure 11'' x 20'', GSI Rocks, Minerals, & Gems MTD. 100 SP. 1100-00E

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 group of ten grossular garnet mineral specimens; held in a white card collector's tray. 314 grams total, 20-42 mm (3/4 - 1 1/2 in.) Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).

Materials: Gem type: Aquamarine Carat weight: 77.00 Description Aquamarine Specimen, Natural Blue Aquamarine Crystal on Albite Mineral Specimen Weight : 77.00 Size : 21*20.5*24 mm origin : Skardu Paki

141 Ct. Well Terminated Top Green Panjsher Emerald Crystal on Matrix. Top quality. Origin: Panjshir Afghanistan. Treatment: Natural. Color: top green. Luster: Excelent. Specimen Size: 34 x 45 x 20 mm

Title: Natural & Unheated~ Pink Morganite Mineral Specimen Gemstones: Mineral Specimen Color/Clarity: Pink Carat Weight: 609.20 Cts Size/dimensions: 71x45x44 mm Additional Info/Certificate: Morganite

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]