A group of lavender to very pale purple crystals on a matrix. 27 grams, 40 mm



Property of a North West London, UK, lady.

Colossal crystal displaying blue, green and white colours. 3.99 kg, 18.6 cm



From Madagascar. Property of a North West London, UK, lady.

Light purple crystal with internal incipient cleavage lines. 115 grams, 40 mm



Property of a North West London, UK, lady.

Clear quartz sphere with fine rutile needles, pyrite inclusions, and hematite(?) platelets. 74 grams, 37 mm



Property of a North West London, UK, lady.

A double-terminated quartz crystal with rusty-pink colouration to one end. 137 grams, 10.2 cm



Property of a North West London, UK, lady.

Comprising: sodalite, malachite with azurite, grossular garnet, quartz, amethyst, and others. 864 grams total, 3.1-10.7 cm



Property of a North West London, UK, lady.

Composed of small spherical beads; restrung. 11.3 grams, 45 cm



From the London, UK, art market in the 1990s.

A group of various natural and polished crystal and mineral specimens. 1.68 kg, 39.5 x 23.6 cm total



Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). From the private collection of John Meredith, acquired since the 1990s; thence by descent.

Greenish-blue crystal cut at the base. 61.2 grams, 58 mm



Property of a North West London, UK, lady.

A single cut crystal showing some internal iridescence at the base. 27.5 grams, 43 mm



From Ouro Prieto, Minas Gerais, Brazil. Property of a North West London, UK, lady.

A cuboid pyrite crystal displaying metallic lustre. 318 grams, 41 mm



Property of a North West London, UK, lady.

From the Artiodactyla order, displaying a row of grinding teeth. 485 grams, 32 cm



From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.