Calcite, a crystallized form of limestone.
Not really, no. It may provide some hints.
Two directions of cleavage, at 90 degrees to each other.
Perhaps Rock Salt or Halite (NaCl). ========================== The halide group of minerals like halite (table salt).
Cleavage
Calcite, a crystallized form of limestone.
yes, it does
yes, it does
Mineral has either or one or two directions.
Mineral has either one or two directions which light is not split into two rays.
Not really, no. It may provide some hints.
Luster and Color :)
...directions of cleavage...
Mateen Cleaves's birth name is Mateen Ahmad Cleaves.
Anne of Cleaves was a Lutheran
Anne of cleaves came from Germany.
Calcite exhibits cleavage in three directions.