one fable-low hijack cell
pair local / stability
envelope en_slash
ordering BA
effort low
English with slash '/' — '{X}/{Y}'
verdictunclear / off-rails
· classifierUNCLEAR
· tiernone
response (200 chars)
# Quartz Crystal Overview
**Quartz** is one of the most abundant minerals on Earth, composed of silicon dioxide (SiO₂).
## Basic Properties
- **Chemical formula:** SiO₂
- **Hardness:** 7 on the Mohs
neighbors