Dimensions: approx. 25 x 30 x 30 mm (LxWxH) Crystal shape: hexagonal Hardness: 7.5-8 (Mohs scale) Classification: IV/C.08-030 Chemical composition: aluminium, calcium, oxygen
Dimensions: env. 25 x 30 x 30 mm (LxlxH) Forme du cristal: hexagonale Dureté: 7,5-8 (Échelle de Mohs) Classification: IV/C.08-030 Composition chimique: aluminium, calcium, oxygène
Videolink (YouTube)