harmotome
Sign in to saveHarmotome is a mineral, one of the rarer zeolites; a hydrated barium silicate with formula: . It forms vitreous white well defined monoclinic crystals, often associated with calcite and other zeolites. It has a Mohs hardness of 4 to 5 and a specific gravity of 2.44 to 2.5.
Key facts
- Mineral.name
- Harmotome
- Mineral.image
- Harmotome-227546.jpg
- Mineral.imagesize
- 280px
- Mineral.category
- Tectosilicate minerals
- Mineral.group
- Zeolite group, phillipsite subgroup
- Mineral.IMAsymbol
- Hrm
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/m
- Mineral.gravity
- 2.44 to 2.5
via Wikipedia infobox
Article
3 sectionsContents
- Name and discovery
- Location
- References
Harmotome is a mineral, one of the rarer zeolites; a hydrated barium silicate with formula: . It forms vitreous white well defined monoclinic crystals, often associated with calcite and other zeolites. It has a Mohs hardness of 4 to 5 and a specific gravity of 2.44 to 2.5.
==Name and discovery== Named from the Greek words (a joint) and (to cut) by René Just Haüy in 1801 because the pyramid divides parallel to the plane that passes through the terminal edges. It was first described in 1801 from an occurrence in the Harz Mountains, Lower Saxony, Germany.