Quartz / Silica minerals

Quartz / Silica minerals

Quartz (Smoky quartz) / Silica minerals

Quartz (Smoky quartz) / Silica minerals

Quartz (Smoky quartz) / Silica minerals

Quartz (Smoky quartz) / Silica minerals

Quartz (Amethyst) / Silica minerals

Quartz (Amethyst) / Silica minerals

Quartz (Amethyst) / Silica minerals

Quartz (Tiger's eye) / Silica minerals

Quartz (Rock crystal) / Silica minerals

Quartz (Rock crystal) / Silica minerals

Quartz (Rock crystal) / Silica minerals

Quartz (Rock crystal) / Silica minerals

Quartz (Japanese twin) / Silica minerals

Quartz (Japanese twin) / Silica minerals

Tridymite / Silica minerals

Tridymite / Silica minerals

Chalcedony / Silica minerals

Chalcedony / Silica minerals

Rock and Mineral Types Minerals Silicates Tektosilicates Silica Quartz

Rock and Mineral Types Minerals Silicates Tektosilicates Silica Quartz

Chalcedony

Shigen enerugī tōkei nenpō : (sekiyu, kōkusu, kinzoku kōbutsu, hikinzoku kōbutsu) = Yearbook of mineral resources and petroleum products statistics : (petroleum, coke, metallic minerals and non-metallic minerals)

閃亜鉛鉱, 黄鉄鉱, スカルン鉱物, 石英 / 金属