ROCK CRYSTAL QUARTZ MINERAL FRAGMENT

A fragment or rock crystal quartz mineral having clear to pink tones. Measures approx. 4" height x 10 1/2" length x 6 1/2" depth (10.2cm x 26.7cm x 16.5cm).

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

Amethyst purple rock crystal quartz cluster mineral specimen on a blue lace banded agate matrix underside. 2.25" H x 7.5" W x 5.5" D.

A heavy clear rock crystal quartz geode fragment with acrylic display stand. Measures approx. 11 1/2" width x 11" depth x 7 1/2" height (29.2cm x 27.9cm x 19cm).

An estate grouping of natural quartz crystals, rock crystals and minerals. Dimensions:Largest measures 8" Notes:We Offer Shipping! Provenance:

A large quartz white crystal geode fragment. Measures approx. 5 3/8" height x 16" length x 11" width (14cm x 41cm x 28cm). Total weight approx. 14 kilograms.

Clear quartz rock crystal cluster mineral specimen, the prisms with great clarity and many rainbows. 4.25" H x 4" W x 3.5" D. Provenance: Property from a 910 5th Avenue estate.

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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

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

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

Lapidary carved mineral specimen of a parrot, the bird figured in rock crystal or quartz with gilt metal feet perched on a fibrous geode mimicking a naturalistic rocky landscape. 10.5” H x 9.25&

Lapidary carved mineral specimen of a parrot, the bird figured in rock crystal or quartz with gilt metal feet perched on a fibrous geode mimicking a naturalistic rocky landscape. 10.5” H x 9.25” W

Two mineral specimens comprising one amethyst purple quartz rock crystal cluster and one uncut raw tiger's eye stone. Tiger's eye: 2.25" H x 4" W x 3.5" D.

Clear quartz rock crystal footed bowl carved from one mineral specimen with some iron inclusions and many rainbows. 2.75" H x 6.5" W x 4.75" D.

Clear quartz crystal mineral specimen in, the prism in the form of an obelisk, the natural six-sided formation standing upright, cut and polished. 9.5" H x 3" W x 3" D.

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]