PHYSICAL PROPERTIES
- GROUP Silicates - tectosilicates
- COMPOSITION SiO2
- COLOR Blue
- CRYSTALLINE SYSTEM Hexagonal / trigonal
- CRYSTALLINE HABIT Microcrystalline
- HARDNESS 7
- FRACTURE Uneven
- EXFOLIATION Null
- GLOSS Cerulean to matte
- STRIP White
- TRANSPARENCY From transparent to translucent
- SPECIFIC GRAVITY 2.7
MINERALOGICAL CHARACTERISTICS
The blue chalcedony is a variety of quartz microcrystalline. It can be mammillary, botryoidal or stalactitic. It appears in hydrothermal veins, in volcanic rocks and in sedimentary rocks. Blue Chalcedony is white when pure, but can have different colors when it contains inclusions of other minerals. When the chalcedony presents well-defined bands, it is called agate.
Deposits: Brazil, Japan, Namibia, Portugal, Romania, Turkey, United States and Malawi.
THERAPEUTIC PROPERTIES
The blue chalcedony is considered a stone of soft and calming energy. For this reason it is usually a recommended stone for children. It brings serenity, creativity and optimism. It favors expression, listening and communication. At a healing level, it is said to have an anti-inflammatory effect, which strengthens the immune system and helps heal the lungs.
