Onyx marble bowl from Morocco
Size-
11cm x 10.6cm x 2cm
Weight-
200g
You will receive the item in the photo
Onyx marble (specifically known as banded calcite or Mexican onyx),is chemically distinct from true onyx (a silicate) and true marble(a metamorphic rock).
Crystal system- Trigonal
Habit- Typically aggregates into fibrous,banded or massive structures.
Mineral class- Carbonate
Rock formation- Sedimentary rock
Process- Chemical precipitation from cold-water dissolved carbonate solutions.
Environment- forms in caves as stalagmites/stalactites or near cold springs (travertine)
Banding- created by alternating mineral impurities and varying water flow rates.
Hardness- 3 on the MOHs scale
