Celadonite
KMgFe3+Si4O10(OH)2IMA symbol: Celapproved
Celadonite is a silicate mineral with the formula KMgFe3+Si4O10(OH)2, crystallizing in the monoclinic system. It has a Mohs hardness of 2-2.5, typically green in color, a specific gravity of 2.408.
Photos
-Stilbite-Ca-233193.jpg){kind=link}
Crystallography
| Crystal system | monoclinic crystal systemWikidata (CC0) |
|---|---|
| Space group | C 1 2/m 1 |
| Cell (Å, °) | a = 5.227, b = 9.052, c = 10.153; α = 90, β = 100.53, γ = 90 |
| Cell volume | 472.297 ų, Z = 2 |
| Axial ratios | 0.5774:1:1.1216calculated from COD 9013726 |
| Source structure | COD 9013726 (American Mineralogist, 2010) — 1 of 6 structures |
Physical properties
| Density (calculated) | 2.794 g/cm³calculated from COD 9013726 |
|---|---|
| Hardness (Mohs) | 2single sourceWikidata (CC0) 2-2.5single sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922) |
| Specific gravity | 2.408 g/cm3single sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922) |
| Color | greensingle sourceDana, System of Mineralogy, 6th ed. (1892) |
Classification
| Nickel-Strunz (10th) | 9.EC.15Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 9.EC.15Wikidata (CC0) |