skos:altLabel | - Crystal
- silica
- Quartz crystal
- crystal
- crystals
- quartz
- quartz crystal
- quartz crystals
- SiO<sub>2</sub>
- rock crystal
- Citrine
- smoky quartz
- Rock Crystal
- Rose quartz
- ''sphatik''
- Milky quartz
- Mountain crystal
- QUARTZ
- Quartz miner
- Quartz#Citrine
- Quartz#Milky quartz
- Quartz#Rose quartz
- Quartz#Rose_quartz
- Quartz#Varieties (according to color)
- Rock crystal
- Rose Quartz
- Star blue quartz
- citrine
- clear quartz
- crystal materials
- crystalline quartz sand
- microquartz
- milky quartz
- other silica crystals
- quartz pebbles
- quartz prism objective
- quartz sand
- quartz stone
- quartz stones
- quartz surfaces
- quartz#Milky quartz
- quartz-rich
- quartzes
- quartzose
- rock-crystal
- rose quartz
- star blue quartz
- sugar-white
- vein quartz
- white quartz
- α-quartz
- β-quartz
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