datolite

minerale

Mineral.name: Datolite
Mineral.category: Nesosilicate
Mineral.image: Datolite-rom25c.jpg
Mineral.imagesize: 260px
Mineral.caption: Datolite on sphalerite from San Luis Potosí, Mexico (size: 6.2 x 5.3 x 2.8 cm)
Mineral.formula: CaBSiO4(OH)
Mineral.IMAsymbol: Dat
Mineral.strunz: 9.AJ.20
Mineral.system: Monoclinic
Mineral.class: Prismatic (2/m) (same H-M symbol)
Mineral.symmetry: P21/c
Mineral.unit cell: a = 9.62, b = 7.6 c = 4.84 [Å]; β = 90.15°; Z = 4
Mineral.color: Colorless or white; may be grayish, yellow, green, pale green, red, pink, etc.
Mineral.habit: Crystal prismatic, short to tabular; Botryoidal or globular with columnar structure; granular to compact; cryptocrystalline
Mineral.cleavage: None
Mineral.fracture: Conchoidal to uneven
Mineral.tenacity: Brittle
Mineral.mohs: 5 to 5.5