Properties
| Category | Tectosilicate minerals |
|---|---|
| Formula | SiO2 |
| Crystal system | Trigonal (quartz), monoclinic (moganite) |
| Color | Olive to applegreen |
| Crystal habit | Microcrystalline aggregates |
| Cleavage | None |
| Fracture | Conchoidal, granular |
| Tenacity | Brittle |
| Mohs scale hardness | 6.0–7.0 |
| Luster | Greasy, waxy |
| Diaphaneity | Nearly opaque to nearly transparent |
| Specific gravity | 2.651–2.91 |
From the Wikipedia article
Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony that contains small quantities of nickel. Its color is normally apple-green, but varies from turquoise-like cyan to deep green. The darker varieties of chrysoprase are also referred to as prase.
Source
Source record: crystal-compendium/chrysoprase/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.
https://en.wikipedia.org/wiki/Chrysoprase — revision id 1343250230. Text and properties from Wikipedia, licensed CC BY-SA 4.0.