Large mineral crystal specimen

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

A large quartz mineral specimen. The total approx weight is 24.6 lbs. From a Mt Vernon, NY estate. Dimensions: 14" in length x 12" wide.

A large hexagonal-section ruby corundum crystal (1,665 carats), with classic triangular markings on the terminal faces, old collector's label with inked '277' notation. 333 grams, 43mm (1 3/4"). From

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

Mineral specimen, large rough-hewn quartz druzy crystal geode on brass stand. 8" diameter.

X Large Amethyst Brazilian Geode with large Crystals. Natural Mineral Specimen. Dimensions: H: 24 inches: W: 30 inches: D: 14 inches ---

(8) LARGE CRYSTAL, ROCK, & MINERAL SPECIMENS INC. PERIDOT IN BASALT, BROWN, SMOKY, PURPLE, & CLEAR QUARTZ LARGEST CRYSTAL 6" TALL, BASE 9" WIDE

Larger size natural smoky quartz mineral specimen. Large crystal pint with a smaller twinned crystal. Deep dark brown black color fading into white quartz. Very nice decorative element. Gives off nice

Two trays of mineral and crystal specimens including stibnite with realgar, large limonite, galena, large quartz crystals, petrified wood, and more, 29 specimens

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

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

A large, well-formed single crystal of rock crystal quartz. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.219. 752 grams, 14cm (5 1/2"). From the historic ‘Victorian Museum’ a

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"

A group of ten large sections of pink dolomite, some with marcasite and other inclusions. 1.1 kg total, 57-83mm (2 1/4 - 3 1/4"). From the historic ‘Victorian Museum’ or later collection of Gregor

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

Large Amethyst Crystal Chimney. Natural Mineral Specimen. Dimensions: H: 17.5 inches: W: 8 inches: D: 6 inches ---

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

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

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

large geode in egg shaped rock with center cluster of minerals. Polished surface around crystals. Mineral and Rock specimen measures 11x 9 in. With a height of 5 in. Heavy specimen. Center appears to

Madagascar celestite mineral specimen; centering a large crystal, with fine blue coloration; L: 6" (approx.)

Extra Large Green Tourmaline Crystal 6lb 13oz

Extra Large Shiva Lingham Stone Narada River, India

Super Quality Extra Large Chariote Slab Russia 1lb 3oz