Natural History - Muscovite and Quartz Crystal Group

. A group of twelve mineral specimens of muscovite (white mica) and quartz crystals on albite, with a specimen of the zeolites stilbite and heulandite on matrix. Private collection, Cambridgeshire, UK

A group of nine natural quartz crystal pendants with silver-coloured metal caps, each cap mounting three small tourmaline crystals, and one faceted amethyst drop with an electroformed cap, all in plas

A group of 50 quartz crystal specimens including clear examples with points. 1.67 kg total, 27-87 mm (1 - 3 3/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [50, No Reserve]

A group of fifty quartz points with clear colour and rainbow reflections. From Brazil; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gr

An estate grouping of natural quartz crystals. Dimensions:Largest measures 10" Notes:We Offer Shipping! Provenance:

A rare specimen consisting of numerous finely-crystallised anatase crystals encrusting a group of quartz crystals, from Norway, in old white card tray with handwritten label reading: 'Anatase on Quart

A very unusual quartz encrustation, originally formed over a group of calcite crystals which were subsequently dissolved away leaving the quartz coating retaining the shapes of the original calcite cr

A group of semi-transparent, blocky, yellow-green apatite encrusting quartz, with accessory calcite and a single prismatic quartz crystal, with handwritten note reading:'APATITE, Panasqueriva', Tipex

A group of twenty-seven natural geode halves with quartz crystals from Brazil, each cut with a polished face. 1037 gram total, 37-70mm (1 1/2 - 2 3/4"). From an old Lincoln Collection [27, No Reserve]

An unusually fine group of sharply formed, deep green epidote crystals with quartz on a rock groundmass, from the famous Green Monster Mountain locality on Prince of Wales Island, Alaska; in old white

A mixed mineral group comprising: a limestone matrix with rare blue quartz inclusions, a domed basalt matrix richly covered in green olivine crystals, a powdery limestone matrix carpeted with celestit

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

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]

. Mainly translucent with some small rainbow reflections. 83 grams, 37 mm (1 1/2 in.). From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

A group of ten richly coloured pieces of rose quartz. From Brazil; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co.

Comprising eleven clusters of pseudo-hexagonal twinned crystals. 313 grams total, 28-54 mm (1 1/8 - 2 1/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [11, No

A large freeform-cut piece of very fine, transparent quartz, finely faceted with a needlelike rutile crystal embedded in it, in white card tray with label reading: 'RUTILATED QUARTZ FREEFORM'. From th

. The flexible metal branches tipped with polished aventurine pebbles; the matrix with clusters of purple amethyst crystals. 563 grams, 18 cm (7 in.). Ex Mineral Imports, London, UK. Gregory, Bottley

A well formed prismatic piece of quartz with black anatase (titanium dioxide) crystals to the surface with handwritten label reading: 'Anatase on Quartz, Handangervidoa, Hondaland, Norway'. From Handa

Art by God, Monumental natural history crystal quartz mineral specimen. Deep purple cathedral amethyst geode. Emits a vibrant, positive energy, helping to balance the harmony in one's life, home or of

Art by God. A natural history crystal quartz mineral specimen. Deep purple cathedral amethyst geode naturally formed over millions of years into the shape of Horn of Plenty Cornucopia. Emits a vibrant

Art by God, Natural History Crystal Quartz Mineral Specimens. Near matched pair of deep purple Amethyst cathedrals. Not only are these geodes stunningly beautiful, they also give off a vibration of po

Art by God. Natural History crystal quartz mineral specimen. Deep purple cathedral amethyst geode. Emits a vibrant, positive energy, helping to balance the harmony in one's life, home or office space.

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