Soon black lead was being mined and exported to meet the demands of artists and in the 17th century, it was being used practically everywhere
त्याच दरम्यान, पेन्सिल उत्पादकांनी काळ्या शिशापासून चांगल्या प्रतीचे लेखनाचे साधन तयार करण्याचे प्रयोग सुरू केले.