Andalusite: or Chiastolite a grey, pink, or brown hard mineral consisting of aluminium silicate in orthorhombic crystalline form. It occurs in metamorphic rocks and is used as a refractory and as a gemstone. Formula: Al 2 SiO 5
This is the home of Ettore Guatelli who devoted his time to collecting 'old things'. tools, furniture, clothes etc.There are approximately tools on display at Ettore Guatelli's Parma home, now a museum.