Book written by Gilles Haineault and edited by Patrimoine hilairemontais...
Gonnardite and Calcite epimorph of Analcime (?). Canada. Specimen...
Dioptase: an emerald-green to blue-green gemmy mineral species
Azurite: a fascinating mineral species
Beryl: an exceptional gemmy mineral species
Pseudomorphs and variations
Vanadinite: a very colourful mineral species