Aksayit (Aksayit) (from the name of the locality) is a rare mineral from the borate class, hydrous magnesium borate [1] . Chemical formula: MgB 6 O 10 · 5H 2 O. Discovered in 1902. It crystallizes in rhombic syngony . Large crystals (up to a maximum of 1.5 cm) have a pale gray color, small crystals are colorless. Mohs hardness 2.5; density 2.01 g / cm 3 . It is found in halogen sedimentary rocks. Opened in Kazakhstan , one of the first among the less common minerals.
| Axait | |
|---|---|
| Formula | MgB 6 O 10.5H 2 O |
| Physical properties | |
| Colour | pale gray, colorless under the microscope |
| Trait color | |
| Hardness | 2.5 |
| Density | 2.01 g / cm³ |
| Syngonia | rhombic |
Notes
Literature
- Aksait // Kazakhstan. National Encyclopedia . - Almaty: Kazakh encyclopedias , 2004. - T. I. - ISBN 9965-9389-9-7 .
When writing this article, material from the publication Kazakhstan. National Encyclopedia ”(1998-2007), provided by the editors of the“ Kazakh Encyclopedia ”under a Creative Commons BY-SA 3.0 Unported license .