A set of coal samples and products resulting from the carbonisation process.
All specimens are placed in a transparent block which facilitates monitoring of their characteristics.
Dimensions: 18 x 14 x 2.4 cm.
14 samples: bituminous coal, black coal, anthracite, gas, fibres, rubber, coke, ammonia, mothlin, fertilizer, pesticide, medicine, dye, tar.
Material: acrylic.
