Natural History - Giant Crystalline Blue Agate Polished

A massive cut and polished agate slice showing bands of blue and brown colour to the border, honeycomb quartz crystals to the centre. From the historic ‘Victorian Museum’ or later collection of Gr

A group of four cut and polished agate nodule ends with bands of colour and crystalline growth. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); fo

A fine 16 mm thick natural agate slab with a crystalline initial layer with a white agate central layer and a hollow filled with lilac amethyst, with two old, unreadable paper labels. From the histori

A sawn and polished pair of natural agate geodes with several 'eyes' and cavities filled with amethyst crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bottley &

A sawn and polished pair of banded white agate geodes with brown agate rim and centre hollow lined with quartz crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bo

. Each polished to expose the layers of the inner core; felt-backed. 774 grams total, 11-13.5 cm (4 1/4 - 5 1/4 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [6, No Reser

A tray carved from an agate nodule, with quartz crystal rim; colour enhanced. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, B

-NATURAL MIDNIGHT BLUE POLISHED AGATE DISPLAY GEM JR ANNEX 01/30

A group of six cut and polished agate geode slices; colour-enhanced. 322 grams total, 8.8-10.7 cm (3 1/2 - 4 1/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]

A group of eight agate geode sections. 3.5 kg total, 85-96 mm (3 3/8 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [8, No Reserve]

A group of six polished agate geode slices; colour-enhanced. 396 grams total, 8.7-11.8 cm (3 3/8 - 4 5/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]

A polished three-sided 'pyramid' of lace agate with numerous twists and swirls picked out in various shades of white and green, the base unpolished to expose the patterns in the raw stone. See Bonewit

DESCRIPTION: A natural blue agate geode stone slice with polished front in a combination of blue and white hues, on a carved wooden stand. CIRCA: 20th Century DIMENSIONS: H: 14 1/4" W: 10 1/2" Have a

A fine slice of natural banded agate with numerous colour bands, and with fine bands producing a rainbow effect, the hollow centre lined with quartz crystals. See Bonewitz, Dr. Ronald Louis, Rocks & M

A large pink agate crystal slice, polished on both faces; colour-enhanced. 484 grams, 23.5 cm (9 1/4 in.). From Antigas, Uraguay.Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No R

Comprising three transparent slices showing attractive banding. 286 grams total, 9-14 cm (3 1/2 - 5 1/2 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [3, No Reserve]

20th century AD. A group of turned and polished agate disc counters, each with a chamfered edge. 217 grams total, 38-39mm (1 1/2"). Property of a Hampshire collector; from Mexico. [13, No Reserve]

A group of six cut and polished purple agate geode sections, with exposed crystals; colour-enhanced. 1.39 kg total, 69-94 mm (2 3/4 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (

A mixed mineral group comprising: a rich dark blue crystalline mass of sodalite, a concave matrix surface invested with quartz, atacamite and malachite, a rashleighite specimen, and a lustrous white m

. With enhanced pink-colour and also showing translucent to opaque quartz crystals. 539 grams, 23.2 cm (9 1/8 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

A cut and polished agate slice displaying crystals to the exposed inner surfaces; a naturally-occurring smiling face formed in the polished surface composed of two large circular eyes and a crescent-s

20th century AD. A group of turned and polished agate disc gaming pieces. 380 grams total, 29mm (1 1/4"). Property of a Hampshire collector; from Mexico. [42, No Reserve]

Beautiful polished agate geode bookends with waves of dark blue, light blue, and vibrant turquoise. Inclusions throughout glisten like exposed crystal in natural light. Blue agate is known as a soothi

This dramatic, multi-strand Southwest-style necklace is strung with fiery orange and deep green and blue highly polished, natural agate stone beads. Dress up your “basic black” with