Jennite
Ca9(Si3O9)2(OH)6·8H2OIMA symbol: Jnnapproved
Jennite is a silicate mineral with the formula Ca9(Si3O9)2(OH)6·8H2O, crystallizing in the triclinic system. It has a calculated density of 2.276 g/cm3. Its streak is white.
Photos
Crystallography
| Crystal system | triclinic crystal systemWikidata (CC0) |
|---|---|
| Space group | P -1 |
| Cell (Å, °) | a = 10.576, b = 7.265, c = 10.931; α = 101.3, β = 96.98, γ = 109.65 |
| Cell volume | 759.496 ų, Z = 1 |
| Axial ratios | 1.4557:1:1.5046calculated from COD 9012921 |
| Source structure | COD 9012921 (Cement and Concrete Research, 2004) |
Physical properties
| Density (calculated) | 2.276 g/cm³calculated from COD 9012921 |
|---|---|
| Streak | whitesingle sourceWikidata (CC0) |
Chemistry (calculated)
| Molecular weight | 1063.37 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | Ca 33.92%, Si 15.85%, O 48.15%, H 2.09% |
Classification
| Nickel-Strunz (10th) | 9.DG.20Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 9.DG.20Wikidata (CC0) |