鉱物標本 — 4

Pale blue-green bladed aragonite crust from Yunnan, China, held in hand

Aragonite — Yunnan, China

5.3 cm (2.09 in) · Yunnan Province, China

Silvery metallic arsenopyrite crystal group from Yaogangxian, Hunan, China

Arsenopyrite — Hunan, China

4.0 cm (1.57 in) · Hunan Province, China

Azurite Crystal Vugs with Malachite — Anhui — individual mineral specimen view 1

Azurite Crystal Vugs with Malachite — Anhui

4.0 cm (1.57 in) · Anhui Province, China

Deep blue azurite with green malachite pocket from Anhui, China, held in hand

Azurite with Malachite — Anhui, China · 6.5 cm

6.5 cm (2.56 in) · Anhui Province, China

Electric blue azurite with green malachite on limonite from Morocco, in a box

Thumbnail Azurite with Malachite — Morocco · 2.1 cm

2.1 cm (0.83 in) · Morocco

Blue azurite and green malachite on a white quartz base from Morocco, on a stand

Thumbnail Azurite with Malachite — Morocco · 2.7 cm

2.7 cm (1.06 in) · Morocco

Deep blue azurite crust spread across a rock slab from Yunnan, China, held in hand

Azurite with Quartz — Yunnan, China

5.3 cm (2.09 in) · Yunnan Province, China

Clear baryte blade with yellow calcite specks from Sichuan, China, held in gloved hand

Baryte with Calcite — Sichuan, China

5.7 cm (2.24 in) · Sichuan Province, China

Amber-yellow tabular baryte crystals from Peru, on an acrylic stand

Baryte — Peru

3.8 cm (1.50 in) · Peru

Blocky white baryte crystal with quartz from Jinkouhe, Sichuan, China, on a stand

Baryte with Quartz — Jinkouhe, Sichuan, China

4.0 cm (1.57 in) · Sichuan Province, China

Cluster of clear baryte blades with quartz from Sichuan, China, held in gloved hand

Baryte with Quartz — Sichuan, China

4.8 cm (1.89 in) · Sichuan Province, China

Thin white baryte blade with a quartz needle, Jinkouhe, Sichuan, China

Thumbnail Baryte with Quartz — Sichuan, China · 1.7 cm

1.7 cm (0.67 in) · Sichuan Province, China

Dark metallic bismuthinite with pale quartz crystals, Inner Mongolia, China

Bismuthinite with Quartz — Inner Mongolia, China

5.2 cm (2.05 in) · Inner Mongolia, China

Black-capped double-terminated quartz from Guizhou, China, held in gloved hand

Black-Capped Double-Terminated Quartz — Guizhou · 4.4 cm

4.4 cm (1.73 in) · Guizhou Province, China

Tiny black-capped double-terminated quartz from Yunnan, China, held on gloved fingertip

Thumbnail Black-Capped Double-Terminated Quartz — Yunnan, China

2.1 cm (0.83 in) · Yunnan Province, China

Black cassiterite crystal with aquamarine and mica from Xuebaoding, Sichuan, China, held in gloved hand

Black Cassiterite with Aquamarine — Xuebaoding · 4.9 cm

4.9 cm (1.93 in) · Xuebaoding, Pingwu, China

Black cassiterite crystals with aquamarine on mica from Xuebaoding, Sichuan, China, held in gloved hand

Black Cassiterite with Aquamarine — Xuebaoding · 6.2 cm

6.2 cm (2.44 in) · Xuebaoding, Pingwu, China

Plate of black cassiterite with white mica rosettes from Xuebaoding, Sichuan, China, held in gloved hand

Black Cassiterite with Mica — Xuebaoding, Sichuan · 10.8 cm

10.8 cm (4.25 in) · Xuebaoding, Pingwu, China

Tiny black cassiterite with golden mica from Xuebaoding, Sichuan, China, held in gloved hand

Thumbnail Black Cassiterite with Mica — Xuebaoding, Sichuan · 2.2 cm

2.2 cm (0.87 in) · Xuebaoding, Pingwu, China

Tiny black cassiterite with golden mica rosette from Xuebaoding, Sichuan, China, held in gloved hand

Thumbnail Black Cassiterite with Mica — Xuebaoding, Sichuan · 2.6 cm

2.6 cm (1.02 in) · Xuebaoding, Pingwu, China