Stones can have many aliases. This is due to language differences, supplier choice, coloquial trends or slang, or sometimes errors and ambiguity between rocks. Read more here.
|Blue Labrador Hell, Azurro Labrabor, Stalaker|
Commercial classification sometimes differs to the scientific, geological designation. In particular, some limestones are deemed marble especially if they take a high polish. Read more here.
|Age||260 million years (Permian)|
|Colouring minerals:||Grey anorthoclase feldspar, black biotite, black-green pyroxene, grey-metallic ore minerals|
MOHS is the standard scale of hardness for minerals 1-10, with 10 being the MOHS of diamond. We also use the broad terms Hard and Soft for simplicity. Read more here.
A coarse-grained, light blue iridescent syenite.
Petrology:A coarse-grained , grey/silvery-blue plutonic rock of uniform structure consisting of up to 85% anorthoclase feldspars. Crystals alternate shining bright blue dependent on the viewing angle.
Petrogenesis:This syenite was generated as an intrusion of a potassium and sodium-rich granite melt, leading to anorthoclase feldspars. The long cooling period meant the molecules were able to gather in the melt and form large feldspar crystals.