Crossword Puzzle MINERAL PROPERTIESOnline version Guess the concept defined. by FRANCIS FERNANDEZ ESTARLICH 1 It is the ability of some minerals to split along planes 2 It is the ability of the mineral´s surface to resist scratching. 3 The .......................... nature is the property of attracting metals 4 5 The colour of the powdered mineral when rubbed across, is the colour of ... 6 It is the appearence of the mineral´s surface on reflecting light 7 The external shape of a mineral is geometrical forming cristals. 2 7 6 3 4 5
New game