Goosecreekite
Mineral CaAl2Si6O16·5H2O
About it
A rare zeolite first found at the Goose Creek quarry, Virginia; the best, as colourless, sharp crystals and balls, come from basalt quarries near Pune, India.
- Type
- Mineral
- Group
- Silicate (tectosilicate), zeolite group
- Formula
- CaAl2Si6O16·5H2O
- Hardness (Mohs)
- 4.5
- Specific gravity
- 2.2–2.22
- Streak
- white
- Lustre
- vitreous (glassy), pearly
- Crystal system
- Monoclinic
- Colours
- colourless, white
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.