Crucigrama THE PROPERTIES OF MINERALS IIVersión en línea SCIENCE. YEAR 4. PRIMARY SCHOOL por Gonzalo Barral 1 A MINERAL THAT IS ALWAYS GREEN AND HAS AN IRREGULAR SHAPE. 2 A MINERAL YOU FIND IN A PENCIL. 3 A MINERAL WITH A LOT OF LUSTRE WHICH ALWAYS HAS A REGULAR SHAPE. 4 A MINERAL SO SOFT YOU CAN SCRATCH IT WITH YOUR FINGERNAIL. 5 THE HARDEST MINERAL. 6 A MINERAL THAT IS NOT SHINY. MOTHERS USE IT FOR THEIR BABIES. 4 3 2 5 6