Muestras de cristal de cuarzo — 8

Pale Pink Quartz Point Cluster — Madagascar — individual mineral specimen view 1

Pale Pink Quartz Point Cluster — Madagascar

10.0 cm (3.94 in) · Madagascar

Peach Apophyllite Rosette on Druzy Quartz — individual mineral specimen view 1

Peach Apophyllite Rosette on Druzy Quartz

5.2 cm (2.05 in)

Petroleum Inclusion Quartz Pair with Red Clay — Madagascar — individual mineral specimen view 1

Petroleum Inclusion Quartz Pair with Red Clay — Madagascar

7.5 cm (2.95 in) · Madagascar

Pink Nirvana Quartz Flower Cluster — Brazil — individual mineral specimen view 1

Pink Nirvana Quartz Flower Cluster — Brazil

3.0 cm (1.18 in) · Brazil

Pink-skinned quartz druse with pyrite from Jiangxi, China, held in gloved hand

Pink-Skinned Hematoid Quartz — Jiangxi, China

5.8 cm (2.28 in) · Jiangxi Province, China

Purple amethyst point on druse matrix from Zimbabwe, held in gloved hand

Purple Amethyst — Zimbabwe · 5.4 cm

5.4 cm (2.13 in) · Zimbabwe

Purple Cactus Quartz Garden Cluster — South Africa — individual mineral specimen view 1

Purple Cactus Quartz Garden Cluster — South Africa

4.5 cm (1.77 in) · South Africa

Purple Smoky Skeletal Quartz with Inclusions — Zimbabwe — individual mineral specimen view 1

Purple Smoky Skeletal Quartz with Inclusions — Zimbabwe

9.2 cm (3.62 in) · Zimbabwe

Quartz, Chalcopyrite and Galena Association — Jiangxi — individual mineral specimen view 1

Quartz, Chalcopyrite and Galena Association — Jiangxi

12.2 cm (4.80 in) · Jiangxi Province, China

Quartz, Dolomite and Sulfide Association — Jiangxi — individual mineral specimen view 1

Quartz, Dolomite and Sulfide Association — Jiangxi

8.0 cm (3.15 in) · Jiangxi Province, China

Red-Clay Castle Skeletal Quartz — Madagascar — individual mineral specimen view 1

Red-Clay Castle Skeletal Quartz — Madagascar

3.0 cm (1.18 in) · Madagascar

Red-Clay Skeletal Quartz with Clear Window — Madagascar — individual mineral specimen view 1

Red-Clay Skeletal Quartz with Clear Window — Madagascar

3.0 cm (1.18 in) · Madagascar

Red-Clay Windowed Skeletal Quartz — Namibia — individual mineral specimen view 1

Red-Clay Windowed Skeletal Quartz — Namibia

3.5 cm (1.38 in) · Namibia

Red-spotted quartz with cream dolomite and brassy pyrite from Jiangxi, China

Red Hematoid Quartz with Dolomite — Jiangxi, China · 3.2 cm

3.2 cm (1.26 in) · Jiangxi Province, China

Two slender orange-red hematoid quartz needles from Guangdong, China, in a perky box

Thumbnail Red Hematoid Quartz — Guangdong, China

2.8 cm (1.10 in) · Guangdong Province, China

Rose-tinted quartz point group from India, held in hand

Red Hematoid Quartz — India

4.1 cm (1.61 in) · India

Small deep red hematoid quartz crystal group from Shanxi, China, in a display box

Thumbnail Red Hematoid Quartz — Shanxi, China

1.5 cm (0.59 in) · Shanxi, China

Orange-red hematoid quartz crystal with a clear amber tip from Shanxi, China

Thumbnail Red Hematoid Quartz — Shanxi, China · 1.8 cm

1.8 cm (0.71 in) · Shanxi, China

Dusty red hematoid quartz with black specular hematite flecks, Shanxi, China

Thumbnail Red Hematoid Quartz with Specular Hematite

2.7 cm (1.06 in) · Shanxi, China

Pink-red quartz point with dark hematite crust from Shanxi, China, in a box

Thumbnail Red Hematoid Quartz with Specular Hematite · 2.2 cm

2.2 cm (0.87 in) · Shanxi, China