Large Siderite, Calcite and Barite Mineral .

Bottom right is approx 5 1/2" x 11 1/4"

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]

Grouping of Ten Large Minerals including, Calcite, Serpentine, Embedded Crystals, and more. The largest measures 22" long and 7" high. Special shipping arrangements must be made due to weight.

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’

A mineral specimen of translucent calcite on quartz with a large layered dark mass to the centre, a small cluster of clear six-sided pyramid crystals underneath, old inked collection number '517' to b

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]

Large chocolate calcite palm. This stone features numerous natural vugs. 75mm X 65mm X 20mm 109Grams.

Mineral Collection: Calcite, Horneblende, Descloizite, Clinoclase/Olivenite, Pumpellyite/Quartz, Pumpellyite, Apatite/Diopside, Apatite, Garnet (Hessonite), Molybdenite, Barite, Calcite

. 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,

A large blue calcite boulder with a waxy lustre. 1.77 kg total, 12 cm (4 3/4 in.). From Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

An interesting sceptre-shaped formation of large rhombohedral calcite crystals on a stalactitic formation of crystalline calcite, salmon-coloured tabular cluster of stilbite crystals to one side. 337

Large variety of rocks and minerals including calcite, agate, tigers eye, gypsum, desert rose Tunisia, quarts, gold ore and more. This sale will be broadcast live on sale day with an auctioneer and ca

Extra Large Apatite in Calcite 1980s Canada

Extra Large Septarian with Calcite Pocket Kanab, Utah 9.5 x 8"

Mexican Mineral Mix: Wulfenite/Mimetite, Vesuvianite, Marcasite, Malachite/Chrysacola, Rosasite (Cumbre Vein, Level 6, Mina Ojuela, Mapimi) Tennanite/Quartz, Large Angel Wing Calcite [Old Locality Pie

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 sphalerite matrix with small clusters of yellow mimetite crystals and large white hexagonal calcite crystals; supplied in a cardboard specimen tray. 150 grams, 71 mm (2 3/4 in.). Mineral Imports, Lo

Lot of 10 pieces of assorted crystal and mineral specimens. Includes a pair of standing agate slices, three smaller agate sliced with stands, a large 8" x 7" x 1.75" agate slice with stand, a large 9"

2pc Rock Mineral Specimen. Geode. Large Amethyst Crystals including calcite on dark purple fluorite Dimensions: H: 5 inches: W: 6 inches: D: 8 inches --- US Shipping charge: In house shipping availabl

Large mineral crystal specimen, Natural mineral crystals possibly golden calcite, or quartz on natural substrate, approx. 5.5"h x 15"l x 9"w

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 group of thirteen mineral specimens, including one jointed twin geode, one septarian nodule from Utah with a yellow calcite centre, brown aragonite or siderite lines, and limestone encasing, one Ger

Missouri Collection: Barite, Chalcopyrite/Dolomite, Galena/Chalcopyrite, Pokrovskite, Calcite, Calcite/Pyrite, Marcasite/Calcite, Galena/Quartz Charlie Hall Collection

Mineral specimens including appophyllite, creedite, calcite, vesuvianite, hemimorphite, delafossite, cavansite, stilbite, sodalite, barite and more.