Marek Włodarski, Natural history of a rock, 1930

Nice example of transparent colorless form of quartz gemstone having an appearance of large chunks of shattered glass. No apparent markings. Dimensions: 10 X 11.25 X 4.5 in. Condition: Good overa

Each with their own unique One of a Kind ( OOAK) color variations, design patterns and forms. Measure from 3' - 3/4" x 4 3/4" - 6 1/2". Condition: Good overall condition having normal average wear. Es

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]

Baker, E.C. Stuart; Gronvold, H., Lodge, G.E., and Keulemans, J.G. [illustrators] THE GAME-BIRDS OF INDIA, BURMA AND CEYLON. 3 volumes. London: The Bombay Natural History Society, 1921-1930. 2nd editi

Baskin, Leonard- ''Leonard Baskin's Miniature Natural History''- Pantheon Books, 1930, four small hard cover books, with dust jackets in cardboard slipcase, ''Extinct Creatures''; ''Insects''; ''Seven

Large group of petrified wood, rock and crystal specimens in shades of pink and brown. Sizes range from 1 1/2" to 9".

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

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

Collection of 18 Pink Pastel Halite Gems - Pink cubic Rock Salt Crystals. Natural History Specimen. Please Note: Water will dissolve Halite Crystals. Largest is 5.5" long From the estate of Frank Hall

Collection of 18 Pink Pastel Halite Gems - Pink cubic Rock Salt Crystals. Natural History Specimen. Please Note: Water will dissolve Halite Crystals. Largest is 5.5" long From the estate of Frank Hall

A large collected grouping of rocks, crystals, and minerals. Natural history grouping. Measures: Largest H 2 1/2" x W 6" x D 4"

A large collected grouping of rocks, crystals, and minerals. Natural history grouping. Measures: Largest H 2 1/2" x W 6" x D 4" Weight Approx 13 lbs

8 Wavellite Pale Green hemispherical crystal rocks on Matrix from Arkansas. Natural History Specimen. Waverlite. Largest 7.5" x 6.5" x 3" From the estate of Frank Hall owner of Dover Scientific and co

6 Angel Wing Calcite crystal rocks from Durango Mexico. 6 Natural History Specimens. Largest 8" x 5" x 3.5" From the estate of Frank Hall owner of Dover Scientific and collector of rocks, crystals, mi

A crust of the rare copper sulphate mineral langite on a rock groundmass, from Ireland, in old white card tray with adhesive tape label reading '1093, Langite, Co. Cork'. From Co. Cork, Ireland; from

Rich purple amethyst geode rock specimen. Very heavy. A great decorative natural history conversation piece for the home or office.Dimensions: 25 X 9.5 X 8 in. Condition: Good to fair condition h

Art by God. A natural history crystal quartz mineral specimen. Deep purple cathedral amethyst geode. Large maw like opening to front, giving the impression of an emerging shark's head with smaller ope

Jurassic Period, circa 140 million years B.P.. Comprising a large fragment of fossilised dung. 1 kg total, 12.4 cm (4 7/8 in.). From the Morrison Formation, Colorado, USA. Collected 1930-1960. From th

. Fine crystals of neptunite (black) and benitoite (blue) on natrolite, from the classic California, USA, locality. Cf. Bonewitz, Dr. Ronald Louis Smithsonian Rock and Gem, (2008), p.287. 354 grams, 1

Oligocene Age, circa 45 million years B.P.. Comprising seven pieces, all containing flies together with other inclusions. 2.31 grams total, 10-18 mm (3/8 - 3/4 in.). Collected 1930-1960. From the coll

A necklace of irregular rock crystal, agate, carnelian, aventurine, and other beads with spacers. 87.6 grams, 69cm (27 1/4"). From a private European collection; formerly in a German collection formed

Jurassic Period, 199-145 million years BP. A block of sedimentary rock with fossilised nut in the matrix. 35 grams, 35mm (1 1/2"). Property of a North London gentleman; from North Florida, USA, in the

A necklace of graduated facetted beads in amethyst, smoky quartz and rock crystal. 74 grams, 44cm (17 1/2"). Property of a London gentleman; acquired from his father's collection. [No Reserve]

A fine group of classic, curved pink dolomite crystals on a matrix of rock dolomite, in white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.181. 384 grams, 95mm (3 3/4"). From t