Salty taste; forms cubic crystals
Red or black with a red streak
Often pretty coloured mineral with hardness of 4
Gold mineral, but not the real thing!
Very soft, white/colourless mineral with hardness of 2
Mineral which fizzes when mixed with hydrochloric acid
Very heavy mineral with specific gravity of 7.5
Most abundant mineral with no cleavage and hardness of 7
A pink feldspar
A feldspar with black and white 'twins' under intense magnification; can be either Na rich or Ca rich
A dark coloured mineral with one perfect cleavage
A light coloured mineral with one perfect cleavage
A green mineral with little or no cleavage
A very dark mineral which forms 2 good cleavage planes at right angles
A very dark mineral which forms 2 good cleavages at 60 degrees
This mineral forms 12-sided crystals
A green mineral which can form thin flakes similar to mica
A metamorphic index mineral formed at low temperatures and high pressure
An aluminosilicate polymorph which never forms under high-pressure
An index mineral commonly found in highly metamorphosed rocks such as gneiss
Digits of Pi
Multiplication Table
Minute Math (Addition)
