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# quartz

noun, uncountable (quartz); adjective-like (a quartz watch)

«quartz» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A hard, common mineral, often clear or white, found in many rocks and in sand; it can form beautiful crystals. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#m1)
2. A tiny piece of quartz crystal in a watch or clock that vibrates at a steady rate to keep accurate time. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#m2)

### In the lessons

In science lessons on rocks and minerals, quartz is very hard (7 on the Mohs scale) and scratches glass; most sand grains are quartz. Some coloured types are gems, like purple amethyst. In everyday life «quartz watch» means a battery watch that keeps good time. Phrases: «rose quartz», «a quartz crystal», «quartz watch».

### Examples

- Most beach sand is made of tiny bits of quartz. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x1)
- We found a shiny quartz crystal on the hike. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x2)
- Quartz is harder than glass. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x3)
- My watch is a quartz watch. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x4)
- Amethyst is a purple kind of quartz. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x5)
- Granite contains quartz, feldspar and mica. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x6)
- Rose quartz is pink. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/#x7)

### Note

Usually uncountable. Spelling: q-u-a-r-t-z. Myth: quartz crystals do not have healing or magic powers; they are just minerals. Hardness 7 means it scratches anything softer than 7.

## On Mova

- [Trees and pragmatics of «quartz» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/Q/quartz/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«quartz» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/quartz.html) on Mova free.