Quartz crystal from the La Gardette Mine, Bourg d’Oisans, Isere, Thone-Alpes, France. Photographed by Mia Dixon

Size: 24.3 x 11 x 7.5 cm

Country: France

Locality: Bourg d’Oisans

Fantastic clear quartz crystal from Arkansas. Has intersecting quartz rod giving the appearance of "the Sword in the Stone". McEari Mine, Arkansas. Photographed by Mia Dixon

Size: 10.5 x 8.5 x 10.5 cm

Country: USA

Locality: Arkansas

Magnificent natural deep blue tanzanite crystal. Super gemmy with a glimmering luster. If you need a great one. Weighs 39.0 gram.

Size: 4.7 x 2.5 x 1.8 cm

Country: Tanzania

Locality: Arusha Region

Sparkling deep blue cornetite with under tones of sky blue and green. Large matrix with the cornetite coating on both sides with contact on one side. From Etoile Mine, Katanga, Democratic Republic of Congo

Size: 19.4 x 10.4 x 7 cm

Country: Dem. Rep. of Congo

Locality: Katanga

Tourmaline on Quartz - Jonas Mine, Brazil. Photo: Joe Budd

Size: 4.5 x 6.9 x 1.5 cm

Country: Brazil

Locality: Jonas Mine

Fluorite crystal on a matrix of granite. The fluorite is pink and lustrous. Photo: Robert Weldon

Size: 8.7 x 4.1 x 3.6 cm

Country: Italy

Locality: Piemonte

Tourmaline with Cleavlandite - Himalaya Mine, USA. Photo: Mia Dixon

Size: 8.4 x 3.6 x 2 cm

Country: USA

Locality: California

Highly saturated yellow crystal of heliodor with a small one to top it off and a bit of matrix on the side. Photo: Jeff Scovil

Size: 6.7 x 2 x 1.9 cm

Country: Brazil

Locality: Capelinha

Fine silver specimen with a delicate feathery look to it. Photo: Jeff Scovil

Size: 5 x 1 x .9 cm

Country: Mexico

Locality: Batopilas

Ice-like aquamarine with beautiful etchings sitting on top of iron stained quartz. Photo: Jeff Scovil

Size: 7.3 x 2.2 x 2.1 cm

Country: Burma

Locality: Sakangyi

Beautiful arrangement of flowerlike scepters of amethyst. Photo: Jeff Scovil

Size: 3.3 x 2.2 x 1 cm

Country: India

Locality: Madras

A fine silver wire in the shape of a dragon. Photo: Jeff Scovil

Size: 11 x 5 x 1.2 cm

Country: China

Locality: Hongda Mine