Mineral Collection Calcite Epidote Large Specimen

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

Large mineral collection consisting of half-cut geodes. Specimens include Brazilian quartz, Oregon thunderheads, Calcite, Pakistani Foraminifera, Kentucky quartz, Mexican lavender quartz, and Mexican

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

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 ten optical calcite specimens, each held in a white card collector's tray. 170 grams total, 18-22 mm (5/8 - 7/8 in.) Durango, Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (

A few noted items to include a piece of natural gold in quartz, uranium malachite, turquoise, fuchsite ruby, cavansite, and much more.

132088 MINERAL SPECIMENS, FOSSILS, GEODES, PETR. WOOD,ETC Large collection of mineral specimens to include 16 assorted geodes with crystals, 1 large piece of petrified wood, 1 Chrysocolla mineral, 1 a

A large specimen of pinkish hobnail calcite, 14 x 12 x 4 inches. Calcite crystals vary from 3/8-inch to more than one inch across. A beautiful viewing piece on a sturdy shelf or in a display case. See

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]

3/4 - 1 1/4 in. (155 grams total, 19-32 mm)DESCRIPTION:A group of 14 white calcite specimens, each held in a white card collector's tray.[14, No Reserve]PROVENANCE:From Mexico.Mineral Imports, London,

. Comprising: anhydrate drilled core from Bahrain; an iridescent blue bornite; a rectangular cut wulfenite specimen; drilled calcite core; a polished red jasper slab found near Dunnotar Castle beach,

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

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

Large specimen of scalenohedral calcite/dolomite crystals, milky pink in color at the tips, near-clear yellow at the bases. Interior crystalline core is black and possibly siderite. Specimen is heavie

Geode and mineral specimen collection, (15) pieces including a large polished malachite, 3.5"h x 8"l x 3.5"w, 2 amethyst geodes, a pair of polished agate bookends, a polished sphere with geode inclusi

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

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

DESCRIPTION: Large grouping collection set of assorted minerals and fossils specimens. Some of the specimens include: Kino's Invites, Silver, Trilobite, Plinomera Fischer, Aragonite, Montpelier, Trilo

to include: blue kyanite, amethyst flower, deep green tourmaline in a quartz matrix, possibly blue-green dogtooth calcite, semi-translucent scolecite spray specimen, possibly blue barite spray on limo

A group of 14 mineral specimens including fluorite, fluorite and mimetite, calcite with pyrite, apophyllite (2), calcite stalactite, amethyst, tabular aragonite, amethyst druse, galena and chalcedony,

A large specimen of pyrite crystals 'Fool's Gold' ranging in size from minute to larger formations with a bright lustre. 615 grams, 95mm (3 3/4"). From a historic ‘Victorian Museum’ collection; fr

Purple, Blue, and Blue-Yellow. The largest 20cm. Two from the collection of Roy Smith. 4.5 Kg. total. Keywords: Rock, Mineral, Gemstone, Gem,